APA Style
Whelan, Tensie. (1991).
Nature tourism: managing for the environment .
Washington, D.C:
Island Press.
Chicago Style
Whelan, Tensie.
Nature tourism: managing for the environment.
Washington, D.C:
Island Press,
1991.
Buku Teks.
MLA Style
Whelan, Tensie.
Nature tourism: managing for the environment.
Washington, D.C:
Island Press,
1991.
Buku Teks.
Turabian Style
Whelan, Tensie.
Nature tourism: managing for the environment.
Washington, D.C:
Island Press,
1991.
Buku Teks.