TY  - GEN
AU  - Lal , Hari Har
AU  - Dutta , B.N.
AU  - Gupta , P.K.
AU  -  Sawhney , B.K.
TI  - Applied physics Vol; II: waves, optics, electricity, magnetism, and atomic and nuclear physics
SN  - 0876926995
U1  - 621 
PY  - 1992///
CY  - New Delhi
PB  - Tata McGrow-Hill
KW  - Applied Physics
ER  -