Gaya APA
Environmental geography: science, land use, and earth systems. (2002).
New York:
John Willey & Sons.
Gaya Chicago
Environmental geography: science, land use, and earth systems.
2nd ed..
New York:
John Willey & Sons,
2002.
Buku.
Gaya MLA
Environmental geography: science, land use, and earth systems.
2nd ed..
New York:
John Willey & Sons,
2002.
Buku.
Gaya Turabian
Environmental geography: science, land use, and earth systems.
New York:
John Willey & Sons,
2002.
Buku.