APA (7th ed.) Citation

Adams, C. R., Bamford, K. M., & Early, M. P. (2012). Principles of horticulture (6th ed.). Routledge.

Chicago Style (17th ed.) Citation

Adams, C. R., K. M. Bamford, and M. P. Early. Principles of Horticulture. 6th ed. London ; New York: Routledge, 2012.

MLA (9th ed.) Citation

Adams, C. R., et al. Principles of Horticulture. 6th ed. Routledge, 2012.