APA استشهاد

Cradock, A. L., Melly, S. J., Allen, J. G., Morris, J. S., & Gortmaker, S. L. (2007). Characteristics of School Campuses and Physical Activity Among Youth.

استشهاد بنمط شيكاغو

Cradock, Angie L., Steven J. Melly, Joseph G. Allen, Jeffrey S. Morris, و Steven L. Gortmaker. Characteristics of School Campuses and Physical Activity Among Youth. 2007.

MLA استشهاد

Cradock, Angie L., et al. Characteristics of School Campuses and Physical Activity Among Youth. 2007.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.