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