Gaya APA
The geographical impact of migration. (1980).
London:
Longman.
Gaya Chicago
The geographical impact of migration.
~.
London:
Longman,
1980.
Buku.
Gaya MLA
The geographical impact of migration.
~.
London:
Longman,
1980.
Buku.
Gaya Turabian
The geographical impact of migration.
London:
Longman,
1980.
Buku.