"Contribution from Bureau of Chemistry and Soils."Caption title.Mode of access: Internet
"Contribution from Soil Conservation Service."Caption title.Bibliography: p. 25-26.Mode of access: I...
Authorities in foot-notes.List of the more important of the papers used in compiling the following t...
"Joint contribution from Bureau of Chemistry and Soils and Bureau of Plant Industry."Caption title.B...
"A contribution from Bureau of Soils."Caption title.Bibliography: p. 13-14.Mode of access: Internet
Caption title."Contribution from Bureau of Chemistry and Soils."Bibliography: p. 30.Mode of access: ...
"Contribution from Bureau of Chemistry and Soils."Caption title.Bibliography: p. 29-30.Mode of acces...
"Contribution from Bureau of Agricultural Engineering."Caption title.Mode of access: Internet
Caption title: Analyses of commercial fertilizers.Cover title.Mode of access: Internet
Contribution from Bureau of Chemistry and Soils.Caption title.Includes bibliographical references (p...
"From the 12th annual report of the Missouri botanical garden".Caption title.Mode of access: Interne...
Joint contribution from Bureau of Agricultural Engineering and Bureau of Chemistry and Soils.Caption...
Caption title."Contribution from Bureau of Chemistry and Soils."Bibliography: p. 11.Mode of access: ...
"Contribution from Soil Conservation Service."Caption title.Bibliography: p. 25-26.Mode of access: I...
Authorities in foot-notes.List of the more important of the papers used in compiling the following t...
"Joint contribution from Bureau of Chemistry and Soils and Bureau of Plant Industry."Caption title.B...
"A contribution from Bureau of Soils."Caption title.Bibliography: p. 13-14.Mode of access: Internet
Caption title."Contribution from Bureau of Chemistry and Soils."Bibliography: p. 30.Mode of access: ...
"Contribution from Bureau of Chemistry and Soils."Caption title.Bibliography: p. 29-30.Mode of acces...
"Contribution from Bureau of Agricultural Engineering."Caption title.Mode of access: Internet
Caption title: Analyses of commercial fertilizers.Cover title.Mode of access: Internet
Contribution from Bureau of Chemistry and Soils.Caption title.Includes bibliographical references (p...
"From the 12th annual report of the Missouri botanical garden".Caption title.Mode of access: Interne...
Joint contribution from Bureau of Agricultural Engineering and Bureau of Chemistry and Soils.Caption...
Caption title."Contribution from Bureau of Chemistry and Soils."Bibliography: p. 11.Mode of access: ...
"Contribution from Soil Conservation Service."Caption title.Bibliography: p. 25-26.Mode of access: I...
Authorities in foot-notes.List of the more important of the papers used in compiling the following t...
"Joint contribution from Bureau of Chemistry and Soils and Bureau of Plant Industry."Caption title.B...