Callahan, J. F., & Clark, L. H. (1988). Teaching in the middle and secondary schools: Planning for competence (3rd ed.). Macmillan Publishing Company ; Collier Macmillan Publishers.
Cita Chicago Style (17a ed.)Callahan, Joseph F., y Leonard H. Clark. Teaching in the Middle and Secondary Schools: Planning for Competence. 3rd ed. New York : London: Macmillan Publishing Company ; Collier Macmillan Publishers, 1988.
Cita MLA (9a ed.)Callahan, Joseph F., y Leonard H. Clark. Teaching in the Middle and Secondary Schools: Planning for Competence. 3rd ed. Macmillan Publishing Company ; Collier Macmillan Publishers, 1988.
Precaución: Estas citas no son 100% exactas.