Gaya APA

Johnson, B, M., Webber, P, B. (2015). An Introduction to Theory and Reasoning in Nursing. Fourth Edition (Fourth Edition). Philadelphia: Wolters Kluwer.

Gaya MLA

Johnson, Betty, M.., Webber, Pamela, B.. "An Introduction to Theory and Reasoning in Nursing. Fourth Edition". Fourth Edition Philadelphia: Wolters Kluwer, 2015. Text.