Hydrology for engineers / Ray K. Linsley, Jr., Max A. Kohler, Joseph L.H. Paulhus. - 2nd ed.. - New York : McGraw-Hill, c1975 - xxiii, 482 s. : il. ISBN 0-07-037967-3.
• / Handbook of pedology : soils, vegetation, environment / Philippe Duchaufour. Rotterdam : Balkema, 1998. 264 s. ISBN 9054107820 .