(2007). Changes in Instructional Hours in Four Subjects by Public School Teachers of Grades 1 Through 4. U.S. Department of Education.
Chicago-Zitierstil (17. Ausg.)Changes in Instructional Hours in Four Subjects by Public School Teachers of Grades 1 Through 4. U.S. Department of Education, 2007.
MLA-Zitierstil (9. Ausg.)Changes in Instructional Hours in Four Subjects by Public School Teachers of Grades 1 Through 4. U.S. Department of Education, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.