MLA

Walker, James M, et al. Implementing an Electronic Health Record System. Springer London, 2005.

APA

Walker, J. M, Bieber, E. J, Richards, F. M, Richards, F., & Buckley, S. (2005). Implementing an Electronic Health Record System. Springer London.

Chicago

Walker, James M., Eric J Bieber, Frank M Richards, Frank Richards, Sandra Buckley, and Sandra Buckley. Implementing an Electronic Health Record System. : Springer London, 2005.