TY  - GEN
AU  - Gibson,Tony
AU  - Singleton,Jack
TI  - The Spare- time book: a practical guide to adventure
T2  - Penguin Handbook PH 61
U1  - 904 
CY  - Harmondsworth
PB  - Penguin Books
KW  - Adventure and adventures
KW  - Geography
N1  - With appendix
ER  -