Wakefield, J. S., & Yarnall, S. R. (1975). The history database: Computer-processed and other medical questionnaires (3d ed.). Medical Computer Services Association.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Wakefield, Jay S., و Stephen R. Yarnall. The History Database: Computer-processed and Other Medical Questionnaires. 3d ed. Seattle: Medical Computer Services Association, 1975.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Wakefield, Jay S., و Stephen R. Yarnall. The History Database: Computer-processed and Other Medical Questionnaires. 3d ed. Medical Computer Services Association, 1975.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.