Gaya APA
Stronza, A., Durham, W, H. (2008).
E-BOOK : ECOTOURISM AND CONSERVATION IN THE AMERICAS .
United Kingdom:
CABI.
Gaya MLA
Stronza, Amanda., Durham, William, H..
"E-BOOK : ECOTOURISM AND CONSERVATION IN THE AMERICAS".
United Kingdom:
CABI,
2008.
Text.