APA
Savage T. V., Armstrong D. G. (., . (1987). Effective teaching in elementary social studies. New York: Macmillan Publishing Company.
Chicago
Savage Tom V, Armstrong David G (Ed), . 1987. Effective teaching in elementary social studies. New York: Macmillan Publishing Company.
Harvard
Savage T. V., Armstrong D. G. (., . (1987). Effective teaching in elementary social studies. New York: Macmillan Publishing Company.
MLA
Savage Tom V, Armstrong David G (Ed), . Effective teaching in elementary social studies. New York: Macmillan Publishing Company. 1987.