Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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