Leftwich, R. H. (1973). The price system and resource allocation. National Book Store.
芝加哥风格引文Leftwich, Richard H. The Price System and Resource Allocation. Manila: National Book Store, 1973.
MLA引文Leftwich, Richard H. The Price System and Resource Allocation. National Book Store, 1973.
警告：这些引文格式不一定是100％准确.