Heath, D. H., & Heath, H. E. (1991). Fulfilling lives: Path to maturity and success. Jossey-Bass.
Lua i Stíl Chicago (17ú heag.)Heath, Douglas H., agus Harriet E. Heath. Fulfilling Lives: Path to Maturity and Success. San Francisco: Jossey-Bass, 1991.
Lua MLA (9ú heag.)Heath, Douglas H., agus Harriet E. Heath. Fulfilling Lives: Path to Maturity and Success. Jossey-Bass, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.