Παραπομπή APA

Longford, N. T. (1995). Models for uncertainity in educational testing. Springer-Verlag.

Παραπομπή Chicago Style

Longford, Nicholas T. Models for Uncertainity in Educational Testing. New York: Springer-Verlag, 1995.

Παραπομπή MLA

Longford, Nicholas T. Models for Uncertainity in Educational Testing. Springer-Verlag, 1995.