Foraging Theory Stephens, David W. Krebs, John R. 9780691084428 Monographs in Behavior and Ecology Heftet 21.03.1987 Engelsk I salg
Food Webs and Niche Space Stephens, David W. Cohen, Joel E. 9780691082028 Monographs in Population Biology Heftet 21.08.1978 Engelsk I salg
