Gaya APA
Social geography: progress and prospect. (1987).
New York:
Croom Hellm.
Gaya Chicago
Social geography: progress and prospect.
~.
New York:
Croom Hellm,
1987.
Buku.
Gaya MLA
Social geography: progress and prospect.
~.
New York:
Croom Hellm,
1987.
Buku.
Gaya Turabian
Social geography: progress and prospect.
New York:
Croom Hellm,
1987.
Buku.