Krebs, C. J. (2009). Ecology: The experimental analysis of distribution and abundance (Sixth edition.). Pearson Benjamin Cummings.
Chicago-referens (17:e uppl.)Krebs, Charles J. Ecology: The Experimental Analysis of Distribution and Abundance. Sixth edition. San Francisco: Pearson Benjamin Cummings, 2009.
MLA-referens (9:e uppl.)Krebs, Charles J. Ecology: The Experimental Analysis of Distribution and Abundance. Sixth edition. Pearson Benjamin Cummings, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.