APA (7th ed.) Citation

Heck, N. H. (1936). Earthquakes. Princeton Univ. Press.

Chicago Style (17th ed.) Citation

Heck, Nicholas Hunter. Earthquakes. Princeton: Princeton Univ. Press, 1936.

MLA (9th ed.) Citation

Heck, Nicholas Hunter. Earthquakes. Princeton Univ. Press, 1936.

Warning: These citations may not always be 100% accurate.