APA Style
Planck, Ulrich. (1990).
sosiologi pertanian (I).
Jakarta:
yayasan obor.
Chicago Style
Planck, Ulrich.
sosiologi pertanian.
I
Jakarta:
yayasan obor,
1990.
Text.
MLA Style
Planck, Ulrich.
sosiologi pertanian.
I
Jakarta:
yayasan obor,
1990.
Text.
Turabian Style
Planck, Ulrich.
sosiologi pertanian.
I
Jakarta:
yayasan obor,
1990.
Print.