APA (7th ed.) Citation

Heck, N. H. (1936). Earthquakes. Princeton University Press; H. Milford, Oxford university press.

Chicago Style (17th ed.) Citation

Heck, N. H. Earthquakes. Princeton : London: Princeton University Press; H. Milford, Oxford university press, 1936.

MLA (9th ed.) Citation

Heck, N. H. Earthquakes. Princeton University Press; H. Milford, Oxford university press, 1936.