Gaya APA

Harkness, G, A., F, D, M, R. (2011). Community and Public Health Nursing Evidence for Practice . United states of America: Wolter Kluwer.

Gaya MLA

Harkness, Gail, A., F, De, Marco,, Rosanna. "Community and Public Health Nursing Evidence for Practice". United states of America: Wolter Kluwer, 2011. Text.