APA (7th ed.) Citation

Fry, W. G. (1970). The Biology of the porifera. Published for the Zoological Society of London by Academic Press.

Chicago Style (17th ed.) Citation

Fry, W. G. The Biology of the Porifera. [London]: Published for the Zoological Society of London by Academic Press, 1970.

MLA (9th ed.) Citation

Fry, W. G. The Biology of the Porifera. Published for the Zoological Society of London by Academic Press, 1970.

Warning: These citations may not always be 100% accurate.