by University of California Agricultural Extension Service

1928

by University of Hawaii (Honolulu). Agricultural Extension Service

1917

by University of Nevada

1915

by University of California Agricultural Extension Service

1921

by University of Idaho. College of Agriculture. Extension Division

1929

by University of Arizona. Agricultural Extension Service

1916

by University of Missouri. Agricultural Extension Service

1929

by University of Washington. Libraries

1916

by University of Nevada

1929

by Iowa State University. Cooperative Extension Service

1907

by University of Nevada

1922

by Ohio State University. Cooperative Extension Service

1910