"Contribution from the Bureau of Plant Industry."Cover title.Mode of access: Internet
"Prepared under the supervision of the Office of Experiment Stations."Cover title.Mode of access: In...
Contribution from the Bureau of Plant Industry.Cover title.Mode of access: Internet
"Contribution from the Bureau of Entomology."Cover title.Bibliography: p. 10-12.Mode of access: Inte...
Contribution of the Bureau of Plant Industry.Cover title.Mode of access: Internet
"Contribution from the Bureau of Plant Industry."Cover title.Bibliography: p. 22.Mode of access: Int...
"Contribution from the Bureau of Plant Industry."Cover title.Mode of access: Internet
Cover title."Contribution from the Bureau of Plant Industry."Mode of access: Internet
"Contribution from the Office of Farm Management."Cover title.Bibliography: p. 35.Mode of access: In...
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 20.Mode of access: I...
"Contribution from the Bureau of Plant Industry."Cover title.Bibliography: p. 34-35.Mode of access: ...
"Contribution from the Bureau of Plant Industry".Caption title.Mode of access: Internet
"Contribution from the Bureau of Entomology."Cover title.Mode of access: Internet
"Contribution from the Bureau of Plant Industry."Cover title.Mode of access: Internet
Contribution from the Bureau of Plant Industry.Cover title.Mode of access: Internet
Contribution from the Bureau of Plant Industry.Caption title.Mode of access: Internet
"Prepared under the supervision of the Office of Experiment Stations."Cover title.Mode of access: In...
Contribution from the Bureau of Plant Industry.Cover title.Mode of access: Internet
"Contribution from the Bureau of Entomology."Cover title.Bibliography: p. 10-12.Mode of access: Inte...
Contribution of the Bureau of Plant Industry.Cover title.Mode of access: Internet
"Contribution from the Bureau of Plant Industry."Cover title.Bibliography: p. 22.Mode of access: Int...
"Contribution from the Bureau of Plant Industry."Cover title.Mode of access: Internet
Cover title."Contribution from the Bureau of Plant Industry."Mode of access: Internet
"Contribution from the Office of Farm Management."Cover title.Bibliography: p. 35.Mode of access: In...
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 20.Mode of access: I...
"Contribution from the Bureau of Plant Industry."Cover title.Bibliography: p. 34-35.Mode of access: ...
"Contribution from the Bureau of Plant Industry".Caption title.Mode of access: Internet
"Contribution from the Bureau of Entomology."Cover title.Mode of access: Internet
"Contribution from the Bureau of Plant Industry."Cover title.Mode of access: Internet
Contribution from the Bureau of Plant Industry.Cover title.Mode of access: Internet
Contribution from the Bureau of Plant Industry.Caption title.Mode of access: Internet
"Prepared under the supervision of the Office of Experiment Stations."Cover title.Mode of access: In...
Contribution from the Bureau of Plant Industry.Cover title.Mode of access: Internet
"Contribution from the Bureau of Entomology."Cover title.Bibliography: p. 10-12.Mode of access: Inte...