Lyapichev P A River runoff regulation and water management calculation Lyapichev P A - 2nd - Jerusalem Israel Program for Scientific Translations 1975 - x,292p. Bib p. 290-92 cm. ISBN: 0 7065 1498 X Source: General Book Subjects--Topical Terms: Geomorphology Dewey Class. No.: U216.58.N7, L5