APA Style
KOCHKO, PATRICK DE. (1989).
ANNUAL REPORT (MAY 1989-MAY 1990) .
SUMATERA UTARA:
PUSAT PENELITIAN PERKEBUNAN MARIHAT.
Chicago Style
KOCHKO, PATRICK DE.
ANNUAL REPORT (MAY 1989-MAY 1990).
SUMATERA UTARA:
PUSAT PENELITIAN PERKEBUNAN MARIHAT,
1989.
Text.
MLA Style
KOCHKO, PATRICK DE.
ANNUAL REPORT (MAY 1989-MAY 1990).
SUMATERA UTARA:
PUSAT PENELITIAN PERKEBUNAN MARIHAT,
1989.
Text.
Turabian Style
KOCHKO, PATRICK DE.
ANNUAL REPORT (MAY 1989-MAY 1990).
SUMATERA UTARA:
PUSAT PENELITIAN PERKEBUNAN MARIHAT,
1989.
Print.