Cita APA (7th ed.)
Checkley, K. (2008). The essentials of social studies, grades K-8: Effective curriculum, instruction, and assessment. Association for Supervision and Curriculum Development.
Cita Chicago (17th ed.)
Checkley, Kathy. The Essentials of Social Studies, Grades K-8: Effective Curriculum, Instruction, and Assessment. Alexandria, Va.: Association for Supervision and Curriculum Development, 2008.
Cita MLA (9th ed.)
Checkley, Kathy. The Essentials of Social Studies, Grades K-8: Effective Curriculum, Instruction, and Assessment. Association for Supervision and Curriculum Development, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.