APA (7th ed.) Citation

Bailey, L. H., & Bailey, E. Z. (1976). Hortus third: A concise dictionary of plants cultivated in the United States and Canada. Macmillan.

Chicago Style (17th ed.) Citation

Bailey, L. H., and Ethel Zoe Bailey. Hortus Third: A Concise Dictionary of Plants Cultivated in the United States and Canada. New York: Macmillan, 1976.

MLA (8th ed.) Citation

Bailey, L. H., and Ethel Zoe Bailey. Hortus Third: A Concise Dictionary of Plants Cultivated in the United States and Canada. Macmillan, 1976.