APA

World Health Organization, . (1977). Food hygiene in catering establishments, legislation and model regulations. Geneva: Published under joint sponsorship of the Food and Agriculture Organization of the United Nations FAO in collaboration with the United Nations Environment Programme.

Chicago

World Health Organization, . 1977. Food hygiene in catering establishments, legislation and model regulations. Geneva: Published under joint sponsorship of the Food and Agriculture Organization of the United Nations FAO in collaboration with the United Nations Environment Programme.

Harvard

World Health Organization, . (1977). Food hygiene in catering establishments, legislation and model regulations. Geneva: Published under joint sponsorship of the Food and Agriculture Organization of the United Nations FAO in collaboration with the United Nations Environment Programme.

MLA

World Health Organization, . Food hygiene in catering establishments, legislation and model regulations. Geneva: Published under joint sponsorship of the Food and Agriculture Organization of the United Nations FAO in collaboration with the United Nations Environment Programme. 1977.