American Horticultural Society & Barrett, T. M. (1992). North American horticulture: A reference guide (Second edition.). Macmillan ; Collier Macmillan Canada ; Maxwell Macmillan International.
Chicago Style (17th ed.) CitationAmerican Horticultural Society and Thomas M. Barrett. North American Horticulture: A Reference Guide. Second edition. New York : Toronto : New York: Macmillan ; Collier Macmillan Canada ; Maxwell Macmillan International, 1992.
MLA (9th ed.) CitationAmerican Horticultural Society and Thomas M. Barrett. North American Horticulture: A Reference Guide. Second edition. Macmillan ; Collier Macmillan Canada ; Maxwell Macmillan International, 1992.
Warning: These citations may not always be 100% accurate.