Biddle, B. J., & Ellena, W. J. (1964). Contemporary research on teacher effectiveness: Bruce J. Biddle [and others]. Holt, Rinehart and Winston.
Cita Chicago (17th ed.)Biddle, Bruce J., i William J. Ellena. Contemporary Research on Teacher Effectiveness: Bruce J. Biddle [and Others]. New York: Holt, Rinehart and Winston, 1964.
Cita MLA (9th ed.)Biddle, Bruce J., i William J. Ellena. Contemporary Research on Teacher Effectiveness: Bruce J. Biddle [and Others]. Holt, Rinehart and Winston, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.