Gutenberg, B., & Richter, C. (1941). Seismicity of the earth. The Society.
Chicago Style (17th ed.) CitationGutenberg, Beno, and Charles Richter. Seismicity of the Earth. [New York]: The Society, 1941.
MLA (9th ed.) CitationGutenberg, Beno, and Charles Richter. Seismicity of the Earth. The Society, 1941.
Warning: These citations may not always be 100% accurate.