PIANKA, E. R. (2000). Evolutionary ecology.-- Ed.6. An Imprint of Ad. Wesley Longman.
芝加哥风格引文PIANKA, Eric R. Evolutionary Ecology.-- Ed.6. San Francisco: An Imprint of Ad. Wesley Longman, 2000.
MLA引文PIANKA, Eric R. Evolutionary Ecology.-- Ed.6. An Imprint of Ad. Wesley Longman, 2000.
警告：这些引文格式不一定是100％准确.