(1936). Vol. 31, № 1-3; Economic Geology. 1936.
Cita Chicago (17th ed.)Vol. 31, № 1-3; Economic Geology. 1936, 1936.
Cita MLA (9th ed.)Vol. 31, № 1-3; Economic Geology. 1936, 1936.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)