APA ציטוט

Gopal, B., & Sharma, K. (1981). Water hyacinth. Hindasia.

Chicago Edition Citation

Gopal, B., and KP Sharma. Water Hyacinth. New Delhi: Hindasia, 1981.

ציטוט MLA

Gopal, B., and KP Sharma. Water Hyacinth. Hindasia, 1981.