APA Style
LUBIS, SJAHRUM. (1991).
BERITA PENELITIAN PERKEBUNAN VOL. 1 (2), APRIL 1991 (VOL. 1 (2), APRIL 1991).
MEDAN:
PUSAT PENELITIAN PERKEBUNAN MEDAN.
Chicago Style
LUBIS, SJAHRUM.
BERITA PENELITIAN PERKEBUNAN VOL. 1 (2), APRIL 1991.
VOL. 1 (2), APRIL 1991
MEDAN:
PUSAT PENELITIAN PERKEBUNAN MEDAN,
1991.
Text.
MLA Style
LUBIS, SJAHRUM.
BERITA PENELITIAN PERKEBUNAN VOL. 1 (2), APRIL 1991.
VOL. 1 (2), APRIL 1991
MEDAN:
PUSAT PENELITIAN PERKEBUNAN MEDAN,
1991.
Text.
Turabian Style
LUBIS, SJAHRUM.
BERITA PENELITIAN PERKEBUNAN VOL. 1 (2), APRIL 1991.
VOL. 1 (2), APRIL 1991
MEDAN:
PUSAT PENELITIAN PERKEBUNAN MEDAN,
1991.
Print.