Espie, C., Lindsay, W., Brooks, D., Hood, E., & Turvey, T. (1989). A controlled comparative investigation of psychological treatments for chronic sleep-onset insomnia.
Lua i Stíl Chicago (17ú heag.)Espie, C., W. Lindsay, D. Brooks, E. Hood, agus T. Turvey. A Controlled Comparative Investigation of Psychological Treatments for Chronic Sleep-onset Insomnia. 1989.
Lua MLA (9ú heag.)Espie, C., et al. A Controlled Comparative Investigation of Psychological Treatments for Chronic Sleep-onset Insomnia. 1989.
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