World Health Organization. (2003). Hazard Characterization for Pathogens in Food and Water. UN.
استشهاد بنمط شيكاغوWorld Health Organization. Hazard Characterization for Pathogens in Food and Water. UN, 2003.
MLA استشهادWorld Health Organization. Hazard Characterization for Pathogens in Food and Water. UN, 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.