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MLA

Nusbaum, Charles J, and G.W Keitt. "A Cytological Study of Host-parasite Relations of Venturia Inaequalis On Apple Leaves." , 595-618.. Print

APA

Nusbaum, C. J, & Keitt, G. (0000). A Cytological Study of Host-Parasite Relations of Venturia inaequalis on Apple Leaves.

Chicago

Nusbaum, Charles J., and G.W Keitt. "A Cytological Study of Host-Parasite Relations of Venturia inaequalis on Apple Leaves" (1938): 595-618..