Cita APA (7a ed.)

Higgins, A. C. (1921). The psychology of nursing. G. P. Putnam's sons.

Cita Chicago Style (17a ed.)

Higgins, Aileen Cleveland. The Psychology of Nursing. New York and London: G. P. Putnam's sons, 1921.

Cita MLA (8a ed.)

Higgins, Aileen Cleveland. The Psychology of Nursing. G. P. Putnam's sons, 1921.