TY  - BOOK
AU  - Rao, Nyasavajjala Nageseara
AU  - Praad, V.V.S. Gu.
TI  - Computer aided design of support system for underground openings
U1  - 624.072 
PY  - 1994///
CY  - Roorkee
PB  - Deptt. of Civil Engg.University of Roorkee
ER  -