Não informado. (2019). Applied Occupational and Environmental Hygiene. Applied Industrial Hygiene for the American Conference of Governmental Industrial Hygienists.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Applied Occupational and Environmental Hygiene. Cincinnati, Ohio: Applied Industrial Hygiene for the American Conference of Governmental Industrial Hygienists, 2019.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Applied Occupational and Environmental Hygiene. Applied Industrial Hygiene for the American Conference of Governmental Industrial Hygienists, 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.