Penggayaan APA
SYS, C. et. al.. (1991).
Land evaluation part I .
Brussels:
General Administration for Development Cooperation.
Chicago Style
SYS, C. et. al..
Land evaluation part I.
Brussels:
General Administration for Development Cooperation,
1991.
Buku.
MLA Style
SYS, C. et. al..
Land evaluation part I.
Brussels:
General Administration for Development Cooperation,
1991.
Buku.
Turabian Style
SYS, C. et. al..
Land evaluation part I.
Brussels:
General Administration for Development Cooperation,
1991.
Buku.