"Contribution from the Bureau of Plant Industry."Caption title.Includes bibliographical references.Mode of access: Internet
"Contribution from the Bureau of Plant Industry."Caption title.Mode of access: Internet
"Contribution from Bureau of Agricultural Economics."Caption title.Includes bibliographical referenc...
"Contribution from the Bureau of Plant Industry."Caption title.Includes bibliographical references.B...
"Contribution from the Bureau of Plant Industry."Caption title.Includes bibliographical references.M...
Caption title."Contribution from Bureau of Plant Industry."Includes bibliographical references.Mode ...
"Contribution from the Bureau of Plant Industry".Caption title.Mode of access: Internet
Caption title."Contribution from Bureau of Plant Industry."Includes bibliographical references.Mode ...
"Professional paper."Caption title."December 21, 1921."Bibliography: p. 67-68.Mode of access: Intern...
"A contribution from Bureau of Plant Industry."Caption title.Includes bibliographical references.Mod...
"Contribution from the Bureau of Plant Industry."Caption title.Mode of access: Internet
Caption title."Contribution from Bureau of Plant Industry."Includes bibliographical references.Mode ...
Caption title.Contribution from the Bureau of Plant Industry.Bibliography: p. 16.Mode of access: Int...
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 8Mode of access: Int...
Caption title."Contribution from Bureau of Plant Industry."Bibliography: p. 57-58.Mode of access: In...
"A contribution from Bureau of Plant Industry."Caption title.Includes bibliographical references (p....
"Contribution from the Bureau of Plant Industry."Caption title.Mode of access: Internet
"Contribution from Bureau of Agricultural Economics."Caption title.Includes bibliographical referenc...
"Contribution from the Bureau of Plant Industry."Caption title.Includes bibliographical references.B...
"Contribution from the Bureau of Plant Industry."Caption title.Includes bibliographical references.M...
Caption title."Contribution from Bureau of Plant Industry."Includes bibliographical references.Mode ...
"Contribution from the Bureau of Plant Industry".Caption title.Mode of access: Internet
Caption title."Contribution from Bureau of Plant Industry."Includes bibliographical references.Mode ...
"Professional paper."Caption title."December 21, 1921."Bibliography: p. 67-68.Mode of access: Intern...
"A contribution from Bureau of Plant Industry."Caption title.Includes bibliographical references.Mod...
"Contribution from the Bureau of Plant Industry."Caption title.Mode of access: Internet
Caption title."Contribution from Bureau of Plant Industry."Includes bibliographical references.Mode ...
Caption title.Contribution from the Bureau of Plant Industry.Bibliography: p. 16.Mode of access: Int...
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 8Mode of access: Int...
Caption title."Contribution from Bureau of Plant Industry."Bibliography: p. 57-58.Mode of access: In...
"A contribution from Bureau of Plant Industry."Caption title.Includes bibliographical references (p....
"Contribution from the Bureau of Plant Industry."Caption title.Mode of access: Internet
"Contribution from Bureau of Agricultural Economics."Caption title.Includes bibliographical referenc...
"Contribution from the Bureau of Plant Industry."Caption title.Includes bibliographical references.B...