Gaya APA
WATTS, david. (1971).
Principles of biogeograhy (ed.1).
:
McGrow Hill.
Gaya Chicago
WATTS, david.
Principles of biogeograhy.
ed.1
:
McGrow Hill,
1971.
BUKU.
Gaya MLA
WATTS, david.
Principles of biogeograhy.
ed.1
:
McGrow Hill,
1971.
BUKU.
Gaya Turabian
WATTS, david.
Principles of biogeograhy.
ed.1
:
McGrow Hill,
1971.
BUKU.