Penggayaan APA
WILLIAMS, Trefor. (1990).
Food, environment and health : .
Geneva:
World Health Organization.
Chicago Style
WILLIAMS, Trefor.
Food, environment and health :.
Geneva:
World Health Organization,
1990.
Buku.
MLA Style
WILLIAMS, Trefor.
Food, environment and health :.
Geneva:
World Health Organization,
1990.
Buku.
Turabian Style
WILLIAMS, Trefor.
Food, environment and health :.
Geneva:
World Health Organization,
1990.
Buku.