TY  - BOOK
AU  - Ritchey,Joseph D.
AU  - Rumbaugh,James O.
TI  - Subsurface fluid flow
T2  - Ground-water and vadose zone) modeling (astm special technical publication// stp
SN  - 0803120214 (paperback)
PY  - 1997///
CY  - [S.l.]
PB  - Astm Intl
UR  - http://www.amazon.com/exec/obidos/ASIN/0803120214/chopaconline-20
ER  -