Bulletin / Ontario Department of Agriculture.

146-168

Bulletin / U.S. Department of Agriculture, Bureau of Plant Industry.

no.58-67 (1904) [incomplete]

Bulletin / U.S. Department of Agriculture, Bureau of Plant Industry.

no.210-217 (1911) [incomplete]

Annual reports of the Department of Agriculture ...

1919

Circular / U.S. Department of Agriculture, Bureau of Plant Industry.

no. 73-104

Annual reports of the Department of Agriculture ...

1922

Annual reports of the Department of Agriculture ...

1923

Annual reports of the Department of Agriculture ...

1920

Annual reports of the Department of Agriculture ...

1910

Annual reports of the Department of Agriculture ...

1918

Annual reports of the Department of Agriculture ...

1911

Annual reports of the Department of Agriculture ...

1917

Annual reports of the Department of Agriculture ...

1912

Annual reports of the Department of Agriculture ...

1916

Biennial report of the Oregon State Board of Horticulture ...

v. 9 (1907)