Pielou, E. C. (2011). The world of northern evergreens (2nd ed.). Comstock Pub. Associates.
芝加哥风格引文Pielou, E. C. The World of Northern Evergreens. 2nd ed. Ithaca: Comstock Pub. Associates, 2011.
MLA引文Pielou, E. C. The World of Northern Evergreens. 2nd ed. Comstock Pub. Associates, 2011.
警告:这些引文格式不一定是100%准确.