Ricklefs R. E. Robert E. (1990). Ecology (Third edition.). New York, W. H. Freeman and Company, 1990.
Chicago Style (17th ed.) CitationRicklefs R. E. Robert E. Ecology. Third edition. New York, W. H. Freeman and Company, 1990, 1990.
MLA (9th ed.) CitationRicklefs R. E. Robert E. Ecology. Third edition. New York, W. H. Freeman and Company, 1990, 1990.
Warning: These citations may not always be 100% accurate.