TY  - BOOK
AU  - Schwab,Gleen Orville
TI  - Elementary and soil water engineering / 
U1  - 631.45 RUS 
PY  - 1957///
CY  - New York : 
PB  - Wiley, 
KW  - Soil conservation
KW  - Hydraulic engineering
N1  -  Includes bibliographical references
ER  -