APA-viite (7. p.)

Leftwich, R. H. An introduction to economic thinking [by] Richard H. Leftwich.

Chicago-viite (17. p.)

Leftwich, Richard H. An Introduction to Economic Thinking [by] Richard H. Leftwich. New York, Holt, Rinehart and Winston [1969].

MLA-viite (9. p.)

Leftwich, Richard H. An Introduction to Economic Thinking [by] Richard H. Leftwich.