TY  - BOOK
AU  - CARLSEN Jack
AU  -  BUTLER Richard
TI  - Island tourism : Sustainable perspectives.   
T2  - Ecotourism Book Series:8
U1  - X9(U8):(G:5), Q1 
PY  - 2011///
CY  - Oxfordshire
PB  - CABI          
ER  -