National Institute of Allergy and Infectious Diseases (U.S.). Research Reference Reagents Branch, Cunningham, S., & Pennington, R. M. (1970). Catalog of research reagents: Edited by Sylvia Cunningham [and] Robert M. Pennington.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Institute of Allergy and Infectious Diseases (U.S.). Research Reference Reagents Branch, Sylvia Cunningham, و Robert M. Pennington. Catalog of Research Reagents: Edited by Sylvia Cunningham [and] Robert M. Pennington. Bethesda, Md, 1970.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)National Institute of Allergy and Infectious Diseases (U.S.). Research Reference Reagents Branch, et al. Catalog of Research Reagents: Edited by Sylvia Cunningham [and] Robert M. Pennington. 1970.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.