Hargreaves, G. (1998). Stress management: The essential guide to thinking and working smarter. Marshall Pub.
Chicago-referens (17:e uppl.)Hargreaves, Gerard. Stress Management: The Essential Guide to Thinking and Working Smarter. London: Marshall Pub, 1998.
MLA-referens (9:e uppl.)Hargreaves, Gerard. Stress Management: The Essential Guide to Thinking and Working Smarter. Marshall Pub, 1998.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.