Hargreaves, G. (1998). Stress management. Marshall.
Lua i Stíl Chicago (17ú heag.)Hargreaves, Gerard. Stress Management. London: Marshall, 1998.
Lua MLA (9ú heag.)Hargreaves, Gerard. Stress Management. Marshall, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.