APA (7th ed.) Citation

American Horticultural Society, Brickell, C., & Zuk, J. (1997). The American Horticultural Society A-Z encyclopedia of garden plants (First American edition.). DK Pub..

Chicago Style (17th ed.) Citation

American Horticultural Society, Christopher Brickell, and Judith Zuk. The American Horticultural Society A-Z Encyclopedia of Garden Plants. First American edition. New York, N.Y.: DK Pub., 1997.

MLA (9th ed.) Citation

American Horticultural Society, et al. The American Horticultural Society A-Z Encyclopedia of Garden Plants. First American edition. DK Pub., 1997.