Elsevier's dictionary of hydrogeology; in three languages, English. French. German. Compiled and arranged on an English alphabetical basis by Hans-Olaf Pfannkuch. Dictionary of hydrogeology. Pfannkuch, Hans-Olaf. Hydrogeology Dictionaries Polyglot. English language Dictionaries Polyglot. GB1003 .P46 551.4903 19 PFE Bibliography: p. [9]-[11] Amsterdam, New York, Elsevier, 1969. 1969. 1969 Text [12] 168 p. : eng engfreger