Checkley, K. (2008). The essentials of social studies, grades K-8: Effective curriculum, instruction, and assessment. Association for Supervision and Curriculum Development.
Citação do estilo Chicago (17ª 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.
Citação MLA (9ª ed.)Checkley, Kathy. The Essentials of Social Studies, Grades K-8: Effective Curriculum, Instruction, and Assessment. Association for Supervision and Curriculum Development, 2008.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.