TY  - BOOK
AU  - Gurbinder Kaur 
AU  - Sidhu, H. S
TI  - Esencia  Science & technology: for civil services and other competitive examination
SN  - 9789353160227
PY  - 2019///
CY  - Chennai
PB  - Mc graw hill education
KW  - Science and technology - civil service examination
KW  - Science and technology - competitive examination
ER  -