APA
(1988). Study Guide to Accompany Clark and Kinder. New York: McGraw- Hill.
Chicago
1988. Study Guide to Accompany Clark and Kinder. New York: McGraw- Hill.
Harvard
(1988). Study Guide to Accompany Clark and Kinder. New York: McGraw- Hill.
MLA
Study Guide to Accompany Clark and Kinder. New York: McGraw- Hill. 1988.