APA (7th ed.) Citation

Hartweg, D. L. (1991). Dorothea Orem: Self-care deficit theory. SAGE.

Chicago Style (17th ed.) Citation

Hartweg, Donna L. Dorothea Orem: Self-care Deficit Theory. Newbury Park, Calif: SAGE, 1991.

MLA (9th ed.) Citation

Hartweg, Donna L. Dorothea Orem: Self-care Deficit Theory. SAGE, 1991.