APA (7e ed.) Bronvermelding

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 (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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