Cita APA (7th ed.)

Leftwich, R. H. (1970). The price system and resource allocation (4th ed.). National Bookstore.

Cita Chicago (17th ed.)

Leftwich, Richard H. The Price System and Resource Allocation. 4th ed. Manila: National Bookstore, 1970.

Cita MLA (9th ed.)

Leftwich, Richard H. The Price System and Resource Allocation. 4th ed. National Bookstore, 1970.