Cita APA (7a ed.)
Walton, W. C. (1970). Groundwater resource evaluation. McGraw-Hill.
Cita Chicago Style (17a ed.)
Walton, William Clarence. Groundwater Resource Evaluation. New York: McGraw-Hill, 1970.
Cita MLA (9a ed.)
Walton, William Clarence. Groundwater Resource Evaluation. McGraw-Hill, 1970.
Precaución: Estas citas no son 100% exactas.