Dyfyniad APA

Ory, J., C., & Ryan, K. (1993). Tips for improving testing and grading(v.4). Sage Publications.

Dyfyniad Arddull Chicago

Ory, John, C., and Katherine Ryan. Tips for Improving Testing and Grading(v.4). Newbury Park: Sage Publications, 1993.

Dyfyniad MLA

Ory, John, C., and Katherine Ryan. Tips for Improving Testing and Grading(v.4). Sage Publications, 1993.

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