Invitational Seminar on the Improvement of Measurement in Education and Psychology University of Melbourne, Australian Council for Educational Research, & Spearritt, D. (1982). The Improvement of measurement in education and psychology: Contributions of latent trait theories. Australian Council for Educational Research.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Invitational Seminar on the Improvement of Measurement in Education and Psychology University of Melbourne, Australian Council for Educational Research, و Donald Spearritt. The Improvement of Measurement in Education and Psychology: Contributions of Latent Trait Theories. Hawthorn, Vic.: Australian Council for Educational Research, 1982.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Invitational Seminar on the Improvement of Measurement in Education and Psychology University of Melbourne, et al. The Improvement of Measurement in Education and Psychology: Contributions of Latent Trait Theories. Australian Council for Educational Research, 1982.