Gaya APA

Mary, S, J., Patricia, L, R. (2014). (E) Middle Range Theory for Nursing (ed 3). United States of America: Springer Publishing Company, LLC.

Gaya MLA

Mary, Smith, Jane., Patricia, Liehr, R.. "(E) Middle Range Theory for Nursing". ed 3 United States of America: Springer Publishing Company, LLC, 2014. Text.