Biddle, B. J., & Ellena, W. J. (1964). Contemporary research on teacher effectiveness: Bruce J. Biddle [and others]. Holt, Rinehart and Winston.
Citazione stile Chigago Style (17a edizione)Biddle, Bruce J., e William J. Ellena. Contemporary Research on Teacher Effectiveness: Bruce J. Biddle [and Others]. New York: Holt, Rinehart and Winston, 1964.
Citatione MLA (9a ed.)Biddle, Bruce J., e William J. Ellena. Contemporary Research on Teacher Effectiveness: Bruce J. Biddle [and Others]. Holt, Rinehart and Winston, 1964.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.