TY  - BOOK
AU  - Feynman, Richard P.
TI  - Six not-so-easy pieces: Einstein's relativity, symmetry and space-time
SN  - 9780465023936
U1  - 530.11 
PY  - 1997///
CY  - New York
PB  - Perseus Books Group
KW  - Symmetry (Physics)
ER  -