TY  - GEN
AU  - Penrose, Roger
TI  - Cycles of time : an extraordinary new view of the universe
AV  - QB991 C92Pen
PY  - 2011///
PB  - A. A. Knopf
KW  - Cyclic universe theory (Cosmology)
KW  - Cosmology
N1  - 20038
ER  -