Roy, C. (2014). Generating middle range theory: From evidence to practice. Springer Publishing Company.
Čikaški stil citiranja (17. izdanje)Roy, Callista. Generating Middle Range Theory: From Evidence to Practice. New York: Springer Publishing Company, 2014.
MLA način citiranja (9. izdanje)Roy, Callista. Generating Middle Range Theory: From Evidence to Practice. Springer Publishing Company, 2014.
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