APA-ийн эшлэл(7 дахь хэвлэлт)

AGER, D. (1961). Introducing geology: The earth's crust considered as history. Faber and Faber.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

AGER, D.V. Introducing Geology: The Earth's Crust Considered as History. London: Faber and Faber, 1961.

MLA -ийн эшлэл (9 дэх хэвлэлт)

AGER, D.V. Introducing Geology: The Earth's Crust Considered as History. Faber and Faber, 1961.