TY  - BOOK
AU  - Gupta G S
TI  - Managerial economics
U1  - X:8, M8/TD3 
PY  - 1988///
CY  -  New Delhi 
PB  - Tata Mc-Graw- Hill       
KW  - Management
N1  - Appendix P 240-60
ER  -