TY  - BOOK
AU  - Untermann, Richard K.
TI  - Principles and practices of grading, drainage and road alignment: an ecologic approach 
SN  - 0879096411
U1  - 625.75 
PY  - 1978///
CY  - Virginia
PB  - Reston Publishing Company
KW  - Drainage design
N1  - Includes references & index
ER  -