TY  - BOOK
AU  - Twenhofel,William Henry
TI  - Principles of sedimentation / 
U1  - 551.3 TWE 
PY  - 1950///
CY  - New York : 
PB  - McGrwa- Hill, 
KW  - Sedimentation  and deposition
N1  -  Includes bibliographical references
ER  -