Hardy, R., Cooper, R., Aihie Sayer, A., Ben-Shlomo, Y., Cooper, C., Deary, I., . . . Kuh, D. (2013). Body mass index, muscle strength and physical performance in older adults from eight cohort studies: The HALCyon programme. Public Library of Science.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hardy, R., et al. Body Mass Index, Muscle Strength and Physical Performance in Older Adults from Eight Cohort Studies: The HALCyon Programme. Public Library of Science, 2013.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Hardy, R., et al. Body Mass Index, Muscle Strength and Physical Performance in Older Adults from Eight Cohort Studies: The HALCyon Programme. Public Library of Science, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.