Dyfyniad APA

(1980). Diagnostic and statistical manual of mental disorders. U.S.A: American psychiatric association.

Dyfyniad Arddull Chicago

Diagnostic and Statistical Manual of Mental Disorders. U.S.A: American psychiatric association, 1980.

Dyfyniad MLA

Diagnostic and Statistical Manual of Mental Disorders. U.S.A: American psychiatric association, 1980.

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