Cita APA (7a ed.)

Orem, D. E. (1971). Nursing: Concepts of practice. McGraw-Hill.

Cita Chicago Style (17a ed.)

Orem, Dorothea Elizabeth. Nursing: Concepts of Practice. New York: McGraw-Hill, 1971.

Cita MLA (9a ed.)

Orem, Dorothea Elizabeth. Nursing: Concepts of Practice. McGraw-Hill, 1971.