TY  - BOOK
AU  - Gurbinder Kaur
AU  - Sidhu, H S
TI  - ESENCIA science and technology: for civil services and other competitive examinations 
SN  - 9789353160227
U1  - 000 
PY  - 2019///
CY  - Chennai
PB  - McGraw Hill Education
N1  - Includes index
ER  -