APA aipamena

Smith, K., Fairburn, C., & Cowen, P. (1997). Relapse of depression after rapid depletion of tryptophan.

Chicago Style aipamena

Smith, K., C. Fairburn, and P. Cowen. Relapse of Depression After Rapid Depletion of Tryptophan. 1997.

MLA aipamena

Smith, K., et al. Relapse of Depression After Rapid Depletion of Tryptophan. 1997.