Gaya APA

Nicholls, R, C. (2000). Beginning Hydroponics Soilless Gardening: Hidroponik Bercocok Tanam Tanpa Tanah (2). semarang: Dahara Prize.

Gaya MLA

Nicholls, Richard, C.. "Beginning Hydroponics Soilless Gardening: Hidroponik Bercocok Tanam Tanpa Tanah". 2 semarang: Dahara Prize, 2000. Buku Pend. Biologi.