Dyfyniad APA

Orriss, H. D. (1977). EMPLOYMENT OF MENTALLY HANDICAPPED PEOPLE.

Dyfyniad Arddull Chicago

Orriss, H. D. EMPLOYMENT OF MENTALLY HANDICAPPED PEOPLE. 1977.

Dyfyniad MLA

Orriss, H. D. EMPLOYMENT OF MENTALLY HANDICAPPED PEOPLE. 1977.

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