APA Style

Spencer, Edgar Winston, Spencer, Elizabeth Humphris. (1972). THE DYNAMICS OF THE EARTH: An Introduction to Physical Geology . New York: THOMAS Y. CROWELL COMPANY.

Chicago Style

Spencer, Edgar Winston, Spencer, Elizabeth Humphris. THE DYNAMICS OF THE EARTH: An Introduction to Physical Geology. New York: THOMAS Y. CROWELL COMPANY, 1972. Text.

MLA Style

Spencer, Edgar Winston, Spencer, Elizabeth Humphris. THE DYNAMICS OF THE EARTH: An Introduction to Physical Geology. New York: THOMAS Y. CROWELL COMPANY, 1972. Text.

Turabian Style

Spencer, Edgar Winston, Spencer, Elizabeth Humphris. THE DYNAMICS OF THE EARTH: An Introduction to Physical Geology. New York: THOMAS Y. CROWELL COMPANY, 1972. Print.