Cita APA (7th ed.)

Treece, E. M. W., & Treece, J. W. (1977). Elements of research in nursing (2nd ed.). Phoenix Press.

Cita Chicago (17th ed.)

Treece, Eleanor Mae Walters, i James William Treece. Elements of Research in Nursing. 2nd ed. Quezon City: Phoenix Press, 1977.

Cita MLA (9th ed.)

Treece, Eleanor Mae Walters, i James William Treece. Elements of Research in Nursing. 2nd ed. Phoenix Press, 1977.