Lua APA (7ú heag.)
Leftwich, R. H. (1966). The price system and resource allocation (3rd ed.). Holt, Rinehart, and Winton.
Lua i Stíl Chicago (17ú heag.)
Leftwich, Richard H. The Price System and Resource Allocation. 3rd ed. New York: Holt, Rinehart, and Winton, 1966.
Lua MLA (9ú heag.)
Leftwich, Richard H. The Price System and Resource Allocation. 3rd ed. Holt, Rinehart, and Winton, 1966.
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