Vaughan Dickson, V., Hattar Pollara, M., DeAnner K. Hilfinger Messias,, Naylor, M. D., Rich, V. L., & Meleis, A. I. (2010). Transitions theory: Middle-range and situation-specific theories in nursing research and practice. New York, N.Y.: Springer Publishing Company.

Vaughan Dickson, Victoria, Marianne Hattar Pollara, DeAnner K. Hilfinger Messias, Mary D. Naylor, Victoria L. Rich, and Afaf Ibrahim Meleis. Transitions Theory: Middle-range and Situation-specific Theories in Nursing Research and Practice. New York, N.Y.: Springer Publishing Company, 2010.

Vaughan Dickson, Victoria, et al. Transitions Theory: Middle-range and Situation-specific Theories in Nursing Research and Practice. New York, N.Y.: Springer Publishing Company, 2010.