TY  - BOOK
AU  - Agrahari, Ravi P. 
TI  - Science and Technology: for civil services preliminary and main examinations
SN  - 97 89 35 31 67 684
U1  - 600 AGR 
PB  - Mc Grawhill Education (india) Pvt. Ltd., Chennai
KW  - Competitive Examinations
ER  -