APA(7版)引用形式

Cowen, P., Parry-Billings, M., & Newsholme, E. (1989). Decreased plasma tryptophan levels in major depression.

Chicagoスタイル(17版)引用形式

Cowen, P., M. Parry-Billings, , E. Newsholme. Decreased Plasma Tryptophan Levels in Major Depression. 1989.

MLA(9版)引用形式

Cowen, P., et al. Decreased Plasma Tryptophan Levels in Major Depression. 1989.

警告: この引用は必ずしも正確ではありません.