Lua APA (7ú heag.)

Leftwich, R. H. (1966). The price system and resource allocation (3rd ed.). Holt, Rinehart and winston.

Lua i Stíl Chicago (17ú heag.)

Leftwich, Richard H. The Price System and Resource Allocation. 3rd ed. New York: Holt, Rinehart and winston, 1966.

Lua MLA (9ú heag.)

Leftwich, Richard H. The Price System and Resource Allocation. 3rd ed. Holt, Rinehart and winston, 1966.

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