"Joint contribution from Bureau of Chemistry and Soils and Bureau of Plant Industry."Caption title.Bibliography: p. 14.Mode of access: Internet
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 20.Mode of access: I...
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 19.Mode of access: I...
"Contribution from the Bureau of Plant Industry."Caption title.Mode of access: Internet
"Contribution from Bureau of Plant Industry."Caption title.Bibliography: p. 31.Mode of access: Inter...
Caption title."Contribution from Bureau of Plant Industry."Bibliography: p. 25-26.Mode of access: In...
"A contribution from Bureau of Plant Industry."Caption title.Includes bibliographical references (p....
Caption title."Contribution from Bureau of Plant Industry."Mode of access: Internet
Joint contribution from Bureau of Agricultural Engineering and Bureau of Chemistry and Soils.Caption...
Caption title."Contribution from Bureau of Plant Industry."Bibliography: p. 28-29.Mode of access: In...
"Contribution from the Bureau of Plant Industry".Caption title.Mode of access: Internet
Caption title."A contribution from Bureau of Plant Industry."Bibliography: p. 19.Mode of access: Int...
"A contribution from Bureau of Soils."Caption title.Bibliography: p. 13-14.Mode of access: Internet
Includes index."Contribution from the Office of the Secretary."Caption title.Bibliography: p.48.Mode...
"Contribution from Bureau of Chemistry and Soils."Caption title.Bibliography: p. 29-30.Mode of acces...
Caption title."Contribution from Bureau of Chemistry and Soils."Bibliography: p. 30.Mode of access: ...
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 20.Mode of access: I...
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 19.Mode of access: I...
"Contribution from the Bureau of Plant Industry."Caption title.Mode of access: Internet
"Contribution from Bureau of Plant Industry."Caption title.Bibliography: p. 31.Mode of access: Inter...
Caption title."Contribution from Bureau of Plant Industry."Bibliography: p. 25-26.Mode of access: In...
"A contribution from Bureau of Plant Industry."Caption title.Includes bibliographical references (p....
Caption title."Contribution from Bureau of Plant Industry."Mode of access: Internet
Joint contribution from Bureau of Agricultural Engineering and Bureau of Chemistry and Soils.Caption...
Caption title."Contribution from Bureau of Plant Industry."Bibliography: p. 28-29.Mode of access: In...
"Contribution from the Bureau of Plant Industry".Caption title.Mode of access: Internet
Caption title."A contribution from Bureau of Plant Industry."Bibliography: p. 19.Mode of access: Int...
"A contribution from Bureau of Soils."Caption title.Bibliography: p. 13-14.Mode of access: Internet
Includes index."Contribution from the Office of the Secretary."Caption title.Bibliography: p.48.Mode...
"Contribution from Bureau of Chemistry and Soils."Caption title.Bibliography: p. 29-30.Mode of acces...
Caption title."Contribution from Bureau of Chemistry and Soils."Bibliography: p. 30.Mode of access: ...
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 20.Mode of access: I...
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 19.Mode of access: I...
"Contribution from the Bureau of Plant Industry."Caption title.Mode of access: Internet