APA (7th ed.) Citation

Fry, W. (1970). The biology of the porifera. The Zoological Society of London.

Chicago Style (17th ed.) Citation

Fry, W.G. The Biology of the Porifera. London: The Zoological Society of London, 1970.

MLA (9th ed.) Citation

Fry, W.G. The Biology of the Porifera. The Zoological Society of London, 1970.

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