Espie, C., Watkins, J., Duncan, R., Espie, A., Sterrick, M., Brodie, M., . . . Curtice, L. (2001). Development and validation of the Glasgow Epilepsy Outcome Scale (GEOS): A new instrument for measuring concerns about epilepsy in people with mental retardation.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Espie, C., J. Watkins, R. Duncan, A. Espie, M. Sterrick, M. Brodie, C. McGarvey, و L. Curtice. Development and Validation of the Glasgow Epilepsy Outcome Scale (GEOS): A New Instrument for Measuring Concerns About Epilepsy in People with Mental Retardation. 2001.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Espie, C., et al. Development and Validation of the Glasgow Epilepsy Outcome Scale (GEOS): A New Instrument for Measuring Concerns About Epilepsy in People with Mental Retardation. 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.