Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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