APA-ийн эшлэл(7 дахь хэвлэлт)

Callahan, J. F., & Clark, L. H. (1988). Teaching in the middle and secondary schools: Planning for competence (3rd ed.). Macmillan.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Callahan, Joseph F., ба Leonard H. Clark. Teaching in the Middle and Secondary Schools: Planning for Competence. 3rd ed. New York: Macmillan, 1988.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Callahan, Joseph F., ба Leonard H. Clark. Teaching in the Middle and Secondary Schools: Planning for Competence. 3rd ed. Macmillan, 1988.