APA Style
Weaver, David B.,. (2001).
The Encyclopedia of ecotourism .
:
.
Chicago Style
Weaver, David B.,.
The Encyclopedia of ecotourism.
:
,
2001.
Text.
MLA Style
Weaver, David B.,.
The Encyclopedia of ecotourism.
:
,
2001.
Text.
Turabian Style
Weaver, David B.,.
The Encyclopedia of ecotourism.
:
,
2001.
Print.