Dyfyniad APA

Ross, R. R., & Gendreau, P. (1980). Effective correctional treatment. Butterworths.

Dyfyniad Arddull Chicago

Ross, Robert R., and Paul Gendreau. Effective Correctional Treatment. Toronto: Butterworths, 1980.

Dyfyniad MLA

Ross, Robert R., and Paul Gendreau. Effective Correctional Treatment. Butterworths, 1980.

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