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By: Cotton, R. T.
Edition:
Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1922
Volume: no.1085 (1922)
Series:
Holding Institution: U.S. Department of Agriculture, National Agricultural Library
Subjects:
BHL Collections:
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By: Back, E. A. (Ernest Adna), - Cotton, R. T.
Edition:
Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1926
Volume: no.1428 (1926)
Series:
Holding Institution: U.S. Department of Agriculture, National Agricultural Library
Subjects:
BHL Collections:
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By: Back, E. A. (Ernest Adna), - Cotton, R. T.
Edition:
Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1926
Volume: no.1393 (1926)
Series:
Holding Institution: U.S. Department of Agriculture, National Agricultural Library
Subjects:
BHL Collections:
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By: Back, E. A. (Ernest Adna), - Cotton, R. T.
Edition:
Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1935
Volume: no.369
Series:
Holding Institution: U.S. Department of Agriculture, National Agricultural Library
Subjects:
BHL Collections:
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By: Back, E. A. (Ernest Adna), - Cotton, R. T.
Edition: Rev.
Publication info: Washington, D.C, U.S. Dept. of Agriculture, [1937]
Volume: no.369
Series:
Holding Institution: U.S. Department of Agriculture, National Agricultural Library
Subjects:
BHL Collections:
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By: Back, E. A. (Ernest Adna), - Cotton, R. T. - United States. Department of Agriculture.
Edition:
Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1942
Volume: no.369
Series:
Holding Institution: U.S. Department of Agriculture, National Agricultural Library
Subjects:
BHL Collections:
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By: United States. Bureau of Entomology and Plant Quarantine. - Cotton, R. T. - Walkden, H. H. (Herbert Halden),
Edition:
Publication info: [S.l.], Bureau of Entomology and Plant Quarantine, Agricultural Research Administration, U.S. Dept. of Agriculture, 1952
Volume: no.24
Series:
Holding Institution: U.S. Department of Agriculture, National Agricultural Library
Subjects:
BHL Collections:
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By: Cotton, R. T. - Wagner, George B., - United States. Bureau of Entomology and Plant Quarantine.
Edition:
Publication info: Washington, D.C, U.S. Dept. of Agriculture, December 1935
Volume: 1935
Series:
Holding Institution: U.S. Department of Agriculture, National Agricultural Library
Subjects:
BHL Collections: