Walker, E. R. (1943). From economic theory to policy. The University of Chicago Press.
Chicago Style (17. basım) AtıfWalker, Edward Ronald. From Economic Theory to Policy. Chicago, Ill: The University of Chicago Press, 1943.
MLA (9th ed.) AtıfWalker, Edward Ronald. From Economic Theory to Policy. The University of Chicago Press, 1943.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..