Denisen, E. L., & Denisen, E. L. (1979). Principles of horticulture (2. edition.). New York, New York: Macmillan.
Chicago Style CitationDenisen, Ervin L., and Ervin L. Denisen. Principles of Horticulture. 2. edition. New York, New York: Macmillan, 1979.
MLA CitationDenisen, Ervin L., and Ervin L. Denisen. Principles of Horticulture. 2. edition. New York, New York: Macmillan, 1979.
Warning: These citations may not always be 100% accurate.