Esch, D., & Lepley, M. (1974). Evaluation of joint motion: Methods of measurement and recording. University of Minnesota Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Esch, Dortha, و Marvin Lepley. Evaluation of Joint Motion: Methods of Measurement and Recording. Minneapolis: University of Minnesota Press, 1974.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Esch, Dortha, و Marvin Lepley. Evaluation of Joint Motion: Methods of Measurement and Recording. University of Minnesota Press, 1974.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.