Burton, A. W., & Davis, W. E. (1992). Assessing balance in adapted physical education: Fundamental concepts and applications. Adapted physical activity quarterly, 9(1), S. 14-46.

Burton, Allen W., and Walter E. Davis. "Assessing Balance in Adapted Physical Education: Fundamental Concepts and Applications." Adapted Physical Activity Quarterly 9, no. 1 (1992): S. 14-46.

Burton, Allen W., and Walter E. Davis. "Assessing Balance in Adapted Physical Education: Fundamental Concepts and Applications." Adapted Physical Activity Quarterly 9.1 (1992): S. 14-46.