APA (7th ed.) Citation

Hapgood, C. H. (1958). Earth's shifting crust: A key to some basic problems of earth science. Pantheon Books.

Chicago Style (17th ed.) Citation

Hapgood, Charles H. Earth's Shifting Crust: A Key to Some Basic Problems of Earth Science. [New York]: Pantheon Books, 1958.

MLA (9th ed.) Citation

Hapgood, Charles H. Earth's Shifting Crust: A Key to Some Basic Problems of Earth Science. Pantheon Books, 1958.