Includes index."Contribution from the Office of the Secretary."Caption title.Bibliography: p.48.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 Animal Industry."Caption title.Mode of access: Internet
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 8Mode of access: Int...
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 20.Mode of access: I...
"Contribution from the Bureau of Plant Industry".Caption title.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 Bureau of Agricultural Economics."Caption title.Mode of access: Internet
"Contribution from the Bureau of Plant Industry."Caption title.Includes bibliographical references.M...
Caption title.Contribution from the Bureau of Plant Industry.Bibliography: p. 16.Mode of access: Int...
Caption title."Contribution from Bureau of Agricultural Economics."Bibliography: p. 62-63.Mode of ac...
"In cooperation with the United States Department of Agriculture.""May 1953."Caption title.Bibliogra...
"Contribution from Bureau of Agricultural Economics."Caption title.Mode of access: Internet
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
"Contribution from the Bureau of Plant Industry."Cover title.Bibliography: p. 22.Mode of access: Int...
"Contribution from the Bureau of Animal Industry."Caption title.Mode of access: Internet
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 8Mode of access: Int...
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 20.Mode of access: I...
"Contribution from the Bureau of Plant Industry".Caption title.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 Bureau of Agricultural Economics."Caption title.Mode of access: Internet
"Contribution from the Bureau of Plant Industry."Caption title.Includes bibliographical references.M...
Caption title.Contribution from the Bureau of Plant Industry.Bibliography: p. 16.Mode of access: Int...
Caption title."Contribution from Bureau of Agricultural Economics."Bibliography: p. 62-63.Mode of ac...
"In cooperation with the United States Department of Agriculture.""May 1953."Caption title.Bibliogra...
"Contribution from Bureau of Agricultural Economics."Caption title.Mode of access: Internet
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
"Contribution from the Bureau of Plant Industry."Cover title.Bibliography: p. 22.Mode of access: Int...
"Contribution from the Bureau of Animal Industry."Caption title.Mode of access: Internet
Caption title."Contribution from the Bureau of Plant Industry."Bibliography: p. 8Mode of access: Int...