TY  - BOOK
AU  - Butler, Richard W. 
TI  - Tourism and national parks: issues and implications 
SN  - 0471988944
U1  - FOR 338.4 B97t 2000 
PY  - 2000///
CY  - Chichester
PB  - John Wiley & Sons, Ltd, 
KW  - Tourism
ER  -