TY  - BOOK
AU  - Lang,Heather
TI  - Head first physics: a learne's companion to mechanics and practical physics 
SN  - 9780596102371
U1  - 530 22
PY  - 2009///]
CY  - Beijing
PB  - O'Reilly
KW  - Physics
KW  - Popular works
KW  - BUEsh
KW  - Mechanics
KW  - Reading book
ER  -