APA (7th ed.) Citation

Nicholas, W. L. (1975). The biology of free-living nematodes. Clarendon Press.

Chicago Style (17th ed.) Citation

Nicholas, Warwick L. The Biology of Free-living Nematodes. Oxford: Clarendon Press, 1975.

MLA (9th ed.) Citation

Nicholas, Warwick L. The Biology of Free-living Nematodes. Clarendon Press, 1975.