Cita APA (7th ed.)

Roberto, K. (2003). How to hydroponics: A practical guide to hydroponic gardening (4th ed.). The Futuregarden Press.

Cita Chicago (17th ed.)

Roberto, Keith. How to Hydroponics: A Practical Guide to Hydroponic Gardening. 4th ed. Farmingdale, N.Y.: The Futuregarden Press, 2003.

Cita MLA (9th ed.)

Roberto, Keith. How to Hydroponics: A Practical Guide to Hydroponic Gardening. 4th ed. The Futuregarden Press, 2003.