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MLA

Harley, C. P. (Clayton Price). "Investigations On the Cause and Control of Biennial Bearing of Apple Trees." , p.. Print

APA

Harley, C. P. (Clayton Price). (1942). Investigations on the cause and control of biennial bearing of apple trees.

Chicago

Harley, C. P. (Clayton Price) "Investigations on the cause and control of biennial bearing of apple trees" (0000): p..