APA ציטוט

Kumar, H. D., & Singh, H. N. (1971). Text book on algae. Esat west.

Chicago Edition Citation

Kumar, H. D., and H. N. Singh. Text Book on Algae. New delhi: Esat west, 1971.

ציטוט MLA

Kumar, H. D., and H. N. Singh. Text Book on Algae. Esat west, 1971.