Penggayaan APA
BLAIKIE, Piers. (1987).
Land degradation and society .
London:
Methuen and Co..
Chicago Style
BLAIKIE, Piers.
Land degradation and society.
London:
Methuen and Co.,
1987.
Buku.
MLA Style
BLAIKIE, Piers.
Land degradation and society.
London:
Methuen and Co.,
1987.
Buku.
Turabian Style
BLAIKIE, Piers.
Land degradation and society.
London:
Methuen and Co.,
1987.
Buku.