APA (7th ed.) Zitazioa

Rogers, M. N., & Tjia, B. O. S. (1990). Gerbera production for cut flowers and pot plants. Timber.

Chicago Style (17th ed.) Zitazioa

Rogers, Marlin N., eta Benny Oen Swie Tjia. Gerbera Production for Cut Flowers and Pot Plants. Portland: Timber, 1990.

MLA (9th ed.) Zitazioa

Rogers, Marlin N., eta Benny Oen Swie Tjia. Gerbera Production for Cut Flowers and Pot Plants. Timber, 1990.