Costa, J. B. (1981). Surficial geology: Building with the earth. John Wiley.
Cita Chicago (17th ed.)Costa, John B. Surficial Geology: Building with the Earth. New York: John Wiley, 1981.
Cita MLA (9th ed.)Costa, John B. Surficial Geology: Building with the Earth. John Wiley, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.