Gaya APA

Karel, R., J, H, T. (1977). Aquarium Plants: Their Identification, Cultivation and Ecology (1). Neptune City: TFH Publications.

Gaya MLA

Karel, Rataj., J, Horeman, Thomas. "Aquarium Plants: Their Identification, Cultivation and Ecology". 1 Neptune City: TFH Publications, 1977. Buku Text.