APA

Powers B. A., Knapp T. R., . (1995). A dictionary of nursing theory and research. Thousand Oaks, Calif; London: SAGE.

Chicago

Powers Bethel Ann, Knapp Thomas R, . 1995. A dictionary of nursing theory and research. Thousand Oaks, Calif; London: SAGE.

Harvard

Powers B. A., Knapp T. R., . (1995). A dictionary of nursing theory and research. Thousand Oaks, Calif; London: SAGE.

MLA

Powers Bethel Ann, Knapp Thomas R, . A dictionary of nursing theory and research. Thousand Oaks, Calif; London: SAGE. 1995.