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MLA

Heinicke, Donald Richard, United States, and Agricultural Research Service. "High-density Apple Orchards : Planning, Training, and Pruning." , p.. Print

APA

Heinicke, D. Richard, United States, U. States, & Agricultural Research Service, A. Research Service. (1975). High-density apple orchards : planning, training, and pruning.

Chicago

Heinicke, Donald Richard, United States, and Agricultural Research Service. "High-density apple orchards : planning, training, and pruning" (0000): p..