APA (7th ed.) Citation

Shaler, N. S. (1898). Outlines of the earth's history: A popular study in physiography. D. Appleton and company.

Chicago Style (17th ed.) Citation

Shaler, Nathaniel Southgate. Outlines of the Earth's History: A Popular Study in Physiography. New York: D. Appleton and company, 1898.

MLA (9th ed.) Citation

Shaler, Nathaniel Southgate. Outlines of the Earth's History: A Popular Study in Physiography. D. Appleton and company, 1898.