APA (7th ed.) Citation

AHRENS, L. (1961). Physics and chemistry of the earth - LH. Ahrens et.al. Pergamon Press.

Chicago Style (17th ed.) Citation

AHRENS, LH. Physics and Chemistry of the Earth - LH. Ahrens Et.al. Pergamon Press, 1961.

MLA (8th ed.) Citation

AHRENS, LH. Physics and Chemistry of the Earth - LH. Ahrens Et.al. Pergamon Press, 1961.

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