Gaya APA

LEFTWICH, R, H. (2020). THE PRICE SYSTEM AND RESOURCE ALLOCATION . New York: HOLT, RINEHART AND WINSTON, NEW YORK.

Gaya MLA

LEFTWICH, RICHARD, H.. "THE PRICE SYSTEM AND RESOURCE ALLOCATION". New York: HOLT, RINEHART AND WINSTON, NEW YORK, 2020. Non Fiksi.