Cita APA (7th ed.)

Adams, C. R., & Early, M. P. (2004). Principles of horticulture. Elsevier.

Cita Chicago (17th ed.)

Adams, C. R., i M. P. Early. Principles of Horticulture. New Delhi: Elsevier, 2004.

Cita MLA (9th ed.)

Adams, C. R., i M. P. Early. Principles of Horticulture. Elsevier, 2004.