Park, S., Coull, J., McShane, R., Young, A., Sahakian, B., Robbins, T., & Cowen, P. (1994). Tryptophan depletion in normal volunteers produces selective impairments in learning and memory.
Chicago-referens (17:e uppl.)Park, S., J. Coull, R. McShane, A. Young, B. Sahakian, T. Robbins, och P. Cowen. Tryptophan Depletion in Normal Volunteers Produces Selective Impairments in Learning and Memory. 1994.
MLA-referens (9:e uppl.)Park, S., et al. Tryptophan Depletion in Normal Volunteers Produces Selective Impairments in Learning and Memory. 1994.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.