TY  - BOOK
AU  - Nelkon,Michael
ED  - Heinemann Educational Books
TI  - Graded exercises and worked examples in physics: to advanced level 
U1  - 530.076 23
PY  - 1972///.
CY  - London: 
PB  - Heinemann Educational Books, 
KW  - Physics
KW  - Problems, Exercises, etc
ER  -