Cita APA (7th ed.)

Portella, M., Harmer, C., Flint, J., Cowen, P., & Goodwin, G. (2004). Elevated waking cortisol levels in neuroticism: A biological vulnerability factor for depressive disorders?

Cita Chicago (17th ed.)

Portella, M., C. Harmer, J. Flint, P. Cowen, i G. Goodwin. Elevated Waking Cortisol Levels in Neuroticism: A Biological Vulnerability Factor for Depressive Disorders? 2004.

Cita MLA (9th ed.)

Portella, M., et al. Elevated Waking Cortisol Levels in Neuroticism: A Biological Vulnerability Factor for Depressive Disorders? 2004.