TY  - BOOK
AU  - Mahor,J.W.
AU  - Parker,H.W.
AU  - Wniliner,W.W.
TI  - Shot Crete practice in under ground construction
U1  -  690 
PY  - 1975///
CY  - Washington, D.C.
PB  - U.S. Government Printing Office
KW  - Underground construction
KW  - Estimates
ER  -