APA-ийн эшлэл(7 дахь хэвлэлт)

Pielou, E. C. (2011). The world of northern evergreens (2nd ed.). Comstock Pub. Associates.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Pielou, E. C. The World of Northern Evergreens. 2nd ed. Ithaca: Comstock Pub. Associates, 2011.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Pielou, E. C. The World of Northern Evergreens. 2nd ed. Comstock Pub. Associates, 2011.