Dyfyniad APA

Tyler, R. W., & Wolf, R. M. (1974). Crucial issues in testing. McCutchan.

Dyfyniad Arddull Chicago

Tyler, Ralph W., and Richard M. Wolf. Crucial Issues in Testing. Berkeley: McCutchan, 1974.

Dyfyniad MLA

Tyler, Ralph W., and Richard M. Wolf. Crucial Issues in Testing. McCutchan, 1974.

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