Cita APA (7th ed.)

Gutenberg, B., & Richter, C. (1949). Seismicity of the earth and associated phenomena. Princeton University Press.

Cita Chicago (17th ed.)

Gutenberg, Beno, i Charles Richter. Seismicity of the Earth and Associated Phenomena. Princeton: Princeton University Press, 1949.

Cita MLA (9th ed.)

Gutenberg, Beno, i Charles Richter. Seismicity of the Earth and Associated Phenomena. Princeton University Press, 1949.