APA (7e ed.) Bronvermelding

Leftwich, R. H. (1973). The price system and resource allocation. National Book Store.

Chicago (17e ed.) Bronvermelding

Leftwich, Richard H. The Price System and Resource Allocation. Manila: National Book Store, 1973.

MLA (9e ed.) Bronvermelding

Leftwich, Richard H. The Price System and Resource Allocation. National Book Store, 1973.