TY  - BOOK
AU  - Fexnman,Richard P, x
AU  - x
TI  - Six not-so-easy pieces: Einstein,s relativity, Symmertry, and space-time
SN  - 9780465023936
U1  - 530/F433s 
PY  - 1997///
CY  - New York
PB  - Basic Books
KW  - Physics
N1  - Includes
ER  -