Παραπομπή σε μορφή APA (7η εκδ.)

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.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Park, S., J. Coull, R. McShane, A. Young, B. Sahakian, T. Robbins, και P. Cowen. Tryptophan Depletion in Normal Volunteers Produces Selective Impairments in Learning and Memory. 1994.

Παραπομπή σε μορφή MLA (9th εκδ.)

Park, S., et al. Tryptophan Depletion in Normal Volunteers Produces Selective Impairments in Learning and Memory. 1994.