APA
F.A.O, W.H.O, . (1963). Specifications for identity and purity of food additives. Rome: Food and Agriculture Organisation of the United Nations.
Chicago
F.A.O, W.H.O, . 1963. Specifications for identity and purity of food additives. Rome: Food and Agriculture Organisation of the United Nations.
Harvard
F.A.O, W.H.O, . (1963). Specifications for identity and purity of food additives. Rome: Food and Agriculture Organisation of the United Nations.
MLA
F.A.O, W.H.O, . Specifications for identity and purity of food additives. Rome: Food and Agriculture Organisation of the United Nations. 1963.