APA (7th ed.) Citation

Ricklefs, R. E. (1997). The economy of nature: A textbook on basic ecology (4η έκδ.). W. H. Freeman.

Chicago Style (17th ed.) Citation

Ricklefs, Robert E. The Economy of Nature: A Textbook on Basic Ecology. 4η έκδ. New York: W. H. Freeman, 1997.

MLA (8th ed.) Citation

Ricklefs, Robert E. The Economy of Nature: A Textbook on Basic Ecology. 4η έκδ. W. H. Freeman, 1997.