Callahan, J. F., & Clark, L. H. (1988). Teaching in the middle and secondary schools: Planning for competence (3rd ed.). Macmillan.
芝加哥风格引文Callahan, Joseph F., 与 Leonard H. Clark. Teaching in the Middle and Secondary Schools: Planning for Competence. 3rd ed. New York: Macmillan, 1988.
MLA引文Callahan, Joseph F., 与 Leonard H. Clark. Teaching in the Middle and Secondary Schools: Planning for Competence. 3rd ed. Macmillan, 1988.
警告：这些引文格式不一定是100％准确.