Butler, A. D. (1961). Labor economics and institutions. Macmillan.
Lua i Stíl Chicago (17ú heag.)Butler, Arthur D. Labor Economics and Institutions. New York: Macmillan, 1961.
Lua MLA (9ú heag.)Butler, Arthur D. Labor Economics and Institutions. Macmillan, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.