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MLA

Cotter, Ralph U, and Moses N Levine. "Physiologic Specialization In Puccinia Graminis Secalis." , 297-315.. Print

APA

Cotter, R. U, & Levine, M. N. (0000). Physiologic Specialization in Puccinia graminis secalis.

Chicago

Cotter, Ralph U., and Moses N Levine. "Physiologic Specialization in Puccinia graminis secalis" (1932): 297-315..