TY  - BOOK
AU  - Mehrotra, B.N.
AU  - Sehgal, Nancy
TI  - New course science and technology: strictly accrding to the latest syllabus prepared by the N.C.E.R.T, New Delhi 
U1  - 500 
PY  - 2002///
CY  - New Delhi
PB  - Arya Publications 
KW  - Science
KW  - Technology
ER  -