Cita APA (7th ed.)

Harmer, C., Cowen, P., & Goodwin, G. (2011). Efficacy markers in depression.

Cita Chicago (17th ed.)

Harmer, C., P. Cowen, i G. Goodwin. Efficacy Markers in Depression. 2011.

Cita MLA (9th ed.)

Harmer, C., et al. Efficacy Markers in Depression. 2011.