Cita APA (7a ed.)
Pielou, E. C. (2011). The world of northern evergreens (2nd ed.). Comstock Pub. Associates.
Cita Chicago Style (17a ed.)
Pielou, E. C. The World of Northern Evergreens. 2nd ed. Ithaca: Comstock Pub. Associates, 2011.
Cita MLA (9a ed.)
Pielou, E. C. The World of Northern Evergreens. 2nd ed. Comstock Pub. Associates, 2011.
Precaución: Estas citas no son 100% exactas.