Hargreaves, G. (1998). Stress management: The essential guide to thinking and working smarter. Marshall Pub.
Lua i Stíl Chicago (17ú heag.)Hargreaves, Gerard. Stress Management: The Essential Guide to Thinking and Working Smarter. London: Marshall Pub, 1998.
Lua MLA (9ú heag.)Hargreaves, Gerard. Stress Management: The Essential Guide to Thinking and Working Smarter. Marshall Pub, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.