APA (7th ed.) Citation

(1936). Vol. 31, № 4-6; Economic Geology. 1936.

Chicago Style (17th ed.) Citation

Vol. 31, № 4-6; Economic Geology. 1936, 1936.

MLA (9th ed.) Citation

Vol. 31, № 4-6; Economic Geology. 1936, 1936.

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