APA-ийн эшлэл(7 дахь хэвлэлт)

Macdougall, J. D. (2011). Why geology matters: Decoding the past, anticipating the future. University of California Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Macdougall, J. D. Why Geology Matters: Decoding the Past, Anticipating the Future. Berkeley: University of California Press, 2011.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Macdougall, J. D. Why Geology Matters: Decoding the Past, Anticipating the Future. University of California Press, 2011.