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MLA

United States, Agricultural Research Service, and Plant Science Research Division. "Trees for Shade and Beauty : Their Selection and Care." , p.. Print

APA

United States, U. States, Agricultural Research Service, A. Research Service, & Plant Science Research Division, P. Science Research Division. (1972). Trees for shade and beauty : their selection and care.

Chicago

United States, Agricultural Research Service, and Plant Science Research Division. "Trees for shade and beauty : their selection and care" (0000): p..