TY  - BOOK
AU  - Al-Khalili, Jim
TI  - Black holes, wormholes, and time machines
SN  - 978-1-4398-8559-8
PY  - 2012///
CY  - Boca Raton
PB  - CRC Press
KW  - Black holes
KW  - Space
KW  - The Universe
KW  - Time
ER  -