TY  - BOOK
AU  - United States. Bureau of Reclamation
TI  - Earth manual -Part 1
U1  - RR 910.155 N8 
PY  - 1998///
CY  - Jodhpur
PB  - Scientific Publishers
KW  - Geography
KW  - Earth science
KW  - Earth studies
KW  - Water resources
ER  -