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MLA

Ball, E. D. Biological and ecological factors in the control of the celery leaf tier in Florida . U.S. Dept. of Agriculture, 1935.

APA

Ball, E. D. (1935). Biological and ecological factors in the control of the celery leaf tier in Florida. U.S. Dept. of Agriculture.

Chicago

Ball, E. D. Biological and ecological factors in the control of the celery leaf tier in Florida . U.S. Dept. of Agriculture, 1935.