APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (9th ed.) Atıf

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