APA (7th ed.) Citation

KOTPAL, R. L. (1997). Porifera (7th ed.). RASTOGI PUBLICATIONS.

Chicago Style (17th ed.) Citation

KOTPAL, R. L. Porifera. 7th ed. New Delhi: RASTOGI PUBLICATIONS, 1997.

MLA (9th ed.) Citation

KOTPAL, R. L. Porifera. 7th ed. RASTOGI PUBLICATIONS, 1997.