APA-ийн эшлэл(7 дахь хэвлэлт)

Grew, E. (1995). Study of modern geology: Describing in simple but exact language the making of the earth with some account of prehistoric animal life; with twenty five illustrations. Discovery Pub..

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Grew, E.S. Study of Modern Geology: Describing in Simple but Exact Language the Making of the Earth with Some Account of Prehistoric Animal Life; with Twenty Five Illustrations. New Delhi: Discovery Pub., 1995.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Grew, E.S. Study of Modern Geology: Describing in Simple but Exact Language the Making of the Earth with Some Account of Prehistoric Animal Life; with Twenty Five Illustrations. Discovery Pub., 1995.