APA Style
Boo, Elizabeth. (1990).
Ecotourism: the potentials and pitfalls .
Washington D.C.:
World Wildlife Fund.
Chicago Style
Boo, Elizabeth.
Ecotourism: the potentials and pitfalls.
Washington D.C.:
World Wildlife Fund,
1990.
Text.
MLA Style
Boo, Elizabeth.
Ecotourism: the potentials and pitfalls.
Washington D.C.:
World Wildlife Fund,
1990.
Text.
Turabian Style
Boo, Elizabeth.
Ecotourism: the potentials and pitfalls.
Washington D.C.:
World Wildlife Fund,
1990.
Print.