APA Style
Usman Nasution,Ir.. (1990).
Buletin Pertanian Volume 9 Nomor 1 Desember 1990 (2).
Medan:
Fakultas Pertanian UISU.
Chicago Style
Usman Nasution,Ir..
Buletin Pertanian Volume 9 Nomor 1 Desember 1990.
2
Medan:
Fakultas Pertanian UISU,
1990.
Hard Copy.
MLA Style
Usman Nasution,Ir..
Buletin Pertanian Volume 9 Nomor 1 Desember 1990.
2
Medan:
Fakultas Pertanian UISU,
1990.
Hard Copy.
Turabian Style
Usman Nasution,Ir..
Buletin Pertanian Volume 9 Nomor 1 Desember 1990.
2
Medan:
Fakultas Pertanian UISU,
1990.
Hard Copy.