Gaya APA

Callahan, J, F., Clark, L, H. (1988). Teaching in The Middle And Secondary Schools; planning for competence . New York: Macmillan Publishing Company.

Gaya MLA

Callahan, Joseph, F.., Clark, Leonard, H.. "Teaching in The Middle And Secondary Schools; planning for competence". New York: Macmillan Publishing Company, 1988. Text.