TY  - BOOK
AU  - Gribbin,John R.
TI  - Spacewarps
SN  - 9780385292665
U1  - 523 
PY  - 1983///
CY  - New York
PB  - Dell Publishing Co.
KW  - Cosmology
KW  - Astronomy
KW  - Black Holes
KW  - White Holes
KW  - Space and time
N1  - Includes index; Bibliography: p. 196-198
ER  -