APA-viite (7. p.)

LEFTWICH, R. H. (1969). Introduction to economic thinking. Holt.

Chicago-viite (17. p.)

LEFTWICH, Richard H. Introduction to Economic Thinking. New York: Holt, 1969.

MLA-viite (9. p.)

LEFTWICH, Richard H. Introduction to Economic Thinking. Holt, 1969.