Dyfyniad APA

Evans, K., & Sullivan, J. M. (1990). Dual diagnosis: Counseling the mentally ill substance abuser. Guilford Press.

Dyfyniad Arddull Chicago

Evans, Katie, and J. Michael Sullivan. Dual Diagnosis: Counseling the Mentally Ill Substance Abuser. New York: Guilford Press, 1990.

Dyfyniad MLA

Evans, Katie, and J. Michael Sullivan. Dual Diagnosis: Counseling the Mentally Ill Substance Abuser. Guilford Press, 1990.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.