Norquist, J., Jenkinson, C., Fitzpatrick, R., & Swash, M. (2003). Factors which predict physical and mental health status in patients with amyotrophic lateral sclerosis over time.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Norquist, J., C. Jenkinson, R. Fitzpatrick, و M. Swash. Factors Which Predict Physical and Mental Health Status in Patients with Amyotrophic Lateral Sclerosis over Time. 2003.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Norquist, J., et al. Factors Which Predict Physical and Mental Health Status in Patients with Amyotrophic Lateral Sclerosis over Time. 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.