APA (7 ম সংস্করণ) উদ্ধৃতি

Krebs, C. J. (2009). Ecology: The experimental analysis of distribution and abundance (Sixth edition.). Pearson Benjamin Cummings.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Krebs, Charles J. Ecology: The Experimental Analysis of Distribution and Abundance. Sixth edition. San Francisco: Pearson Benjamin Cummings, 2009.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Krebs, Charles J. Ecology: The Experimental Analysis of Distribution and Abundance. Sixth edition. Pearson Benjamin Cummings, 2009.