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Main content area

MLA

Allen, Norman, and P. K. (Perry Kips) Harrison. The turnip aphid in the Southern states and methods for its control. U.S. Dept. of Agriculture, 1941.

APA

Allen, Norman, and Harrison, P. K. (Perry Kips). (1941). The turnip aphid in the Southern states and methods for its control. U.S. Dept. of Agriculture.

Chicago

Allen, Norman, and P. K. (Perry Kips) Harrison. The turnip aphid in the Southern states and methods for its control. U.S. Dept. of Agriculture, 1941.