TY  - BOOK
AU  - Sehgal N.K. (HansRaj) Au.; Kapil P. N. Au.; Sarita Kumar Au.; Arora O. P. Ed.
TI  - Visualised science and technology
SN  - 978-93-90455-60-7
PY  - 2129///
CY  - New Delhi, India
PB  - Sultan Chand
KW  - Natural Sciences
ER  -