TY  - BOOK
AU  - Bryant,Victor
AU  - Postill,Ronald
TI  - The Sunday times book of brain teasers: 50 hard (very hard) master problems 
SN  - 0312775652 :
AV  - GV1493 .S867 1982
U1  - 793.73 19
PY  - 1982///
CY  - New York
PB  - St Martin's Press
KW  - Puzzles
UR  - http://www.archive.org/details/sundaytimesbooko00brya
UR  - http://www.openlibrary.org/books/OL3781347M
ER  -