Thompson, H. D. (1960). Earth science. Appleton-Century-Crofts.
Cita Chicago (17th ed.)Thompson, Henry D. Earth Science. New York: Appleton-Century-Crofts, 1960.
Cita MLA (9th ed.)Thompson, Henry D. Earth Science. Appleton-Century-Crofts, 1960.
Atenció: Aquestes cites poden no estar 100% correctes.