APA-referens (7:e uppl.)
Karlen, J., & Karlen, P. (2014). Early stress, cortisol in hair and health among children in different psychosocial environments. Linkoping University.
Chicago-referens (17:e uppl.)
Karlen, Jerker, och Per Karlen. Early Stress, Cortisol in Hair and Health Among Children in Different Psychosocial Environments. Linkoping, Sweden: Linkoping University, 2014.
MLA-referens (9:e uppl.)
Karlen, Jerker, och Per Karlen. Early Stress, Cortisol in Hair and Health Among Children in Different Psychosocial Environments. Linkoping University, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.