APA (7th ed.) Citation

World Health Organization. (1989). Evaluation of programmes to ensure food safety: Guiding principles. World Health Organization.

Chicago Style (17th ed.) Citation

World Health Organization. Evaluation of Programmes to Ensure Food Safety: Guiding Principles. Geneva, Switzerland: World Health Organization, 1989.

MLA (9th ed.) Citation

World Health Organization. Evaluation of Programmes to Ensure Food Safety: Guiding Principles. World Health Organization, 1989.