Thompson, H. D. (1960). Earth science. Appleton-Century-Crofts.
Cita Chicago Style (17a ed.)Thompson, Henry D. Earth Science. New York: Appleton-Century-Crofts, 1960.
Cita MLA (9a ed.)Thompson, Henry D. Earth Science. Appleton-Century-Crofts, 1960.
Precaución: Estas citas no son 100% exactas.