Cita APA (7a ed.)

Chapman, L. J., & Chapman, J. P. (1987). The search for symptoms predictive of schizophrenia. Schizophrenia bulletin, 13(3), 497-504.

Cita Chicago Style (17a ed.)

Chapman, Loren J., y Jean P. Chapman. "The Search for Symptoms Predictive of Schizophrenia." Schizophrenia Bulletin 13, no. 3 (1987): 497-504.

Cita MLA (9a ed.)

Chapman, Loren J., y Jean P. Chapman. "The Search for Symptoms Predictive of Schizophrenia." Schizophrenia Bulletin, vol. 13, no. 3, 1987, pp. 497-504.