Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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