APA Style
Usman Nasution,Ir.. (1989).
Buletin Pertanian Volume 8 Nomor 3 Desember 1989 (2).
Medan:
Fakultas Pertanian UISU.
Chicago Style
Usman Nasution,Ir..
Buletin Pertanian Volume 8 Nomor 3 Desember 1989.
2
Medan:
Fakultas Pertanian UISU,
1989.
Hard Copy.
MLA Style
Usman Nasution,Ir..
Buletin Pertanian Volume 8 Nomor 3 Desember 1989.
2
Medan:
Fakultas Pertanian UISU,
1989.
Hard Copy.
Turabian Style
Usman Nasution,Ir..
Buletin Pertanian Volume 8 Nomor 3 Desember 1989.
2
Medan:
Fakultas Pertanian UISU,
1989.
Hard Copy.