Purtilo, R. B., Haddad, A. M., & Doherty, R. F. (2014). Health professional and patient interaction (8th ed.). Elsevier/Saunders.
Lua i Stíl Chicago (17ú heag.)Purtilo, Ruth B., Amy Marie Haddad, agus Regina F. Doherty. Health Professional and Patient Interaction. 8th ed. St. Louis, Mo.: Elsevier/Saunders, 2014.
Lua MLA (8ú heag.)Purtilo, Ruth B., et al. Health Professional and Patient Interaction. 8th ed. Elsevier/Saunders, 2014.
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