Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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