Costa, J. B. (1981). Surficial geology: Building with the earth. John Wiley.
Cita Chicago Style (17a ed.)Costa, John B. Surficial Geology: Building with the Earth. New York: John Wiley, 1981.
Cita MLA (9a ed.)Costa, John B. Surficial Geology: Building with the Earth. John Wiley, 1981.
Precaución: Estas citas no son 100% exactas.