APA Style
Paul F. Clark, R, J, G, A. (1998 (July)).
A Dictionary of Ecology, Evolution and Systematics (2nd Edition).
Cambridge & New York:
Cambridge University Press.
MLA Style
Paul F. Clark, Roger, J. Lincoln;, Geoffrey, A. Boxshall;.
"A Dictionary of Ecology, Evolution and Systematics".
2nd Edition
Cambridge & New York:
Cambridge University Press,
1998 (July).
Text.