APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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