Karl, C. A. (1990). Teacher observation in selected secondary schools of the Archdiocese of Chicago.
Chicago-Zitierstil (17. Ausg.)Karl, Catherine A. Teacher Observation in Selected Secondary Schools of the Archdiocese of Chicago. 1990.
MLA-Zitierstil (8. Ausg.)Karl, Catherine A. Teacher Observation in Selected Secondary Schools of the Archdiocese of Chicago. 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.