Dyfyniad APA

Vernon, P. E. (1971). Certificate of secondary education: Introduction to objective type examination.

Dyfyniad Arddull Chicago

Vernon, Philip E. Certificate of Secondary Education: Introduction to Objective Type Examination. 1971.

Dyfyniad MLA

Vernon, Philip E. Certificate of Secondary Education: Introduction to Objective Type Examination. 1971.

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