APA Style
LUBIS,Adlin U, Pusat Penelitian Perkebunan Marihat. (1989).
Kelapa sawit (Elaeis guineensis Jacq.)Edisi 1 (1).
Marihat Ulu:
PPM.
Chicago Style
LUBIS,Adlin U, Pusat Penelitian Perkebunan Marihat.
Kelapa sawit (Elaeis guineensis Jacq.)Edisi 1.
1
Marihat Ulu:
PPM,
1989.
Hard Copy.
MLA Style
LUBIS,Adlin U, Pusat Penelitian Perkebunan Marihat.
Kelapa sawit (Elaeis guineensis Jacq.)Edisi 1.
1
Marihat Ulu:
PPM,
1989.
Hard Copy.
Turabian Style
LUBIS,Adlin U, Pusat Penelitian Perkebunan Marihat.
Kelapa sawit (Elaeis guineensis Jacq.)Edisi 1.
1
Marihat Ulu:
PPM,
1989.
Hard Copy.