Todd, D. K. (1959). Groundwater hydrology (Authorized reprint.). John Wiley & Sons, Inc..
Cita Chicago (17th ed.)Todd, David Keith. Groundwater Hydrology. Authorized reprint. New York: John Wiley & Sons, Inc., 1959.
Cita MLA (9th ed.)Todd, David Keith. Groundwater Hydrology. Authorized reprint. John Wiley & Sons, Inc., 1959.
Atenció: Aquestes cites poden no estar 100% correctes.