Acs, Z. J. (1991). Has the role of small firms changed in the United States? WZB.
Chicago Style (17th ed.) CitationAcs, Zoltán J. Has the Role of Small Firms Changed in the United States? Berlin: WZB, 1991.
MLA (9th ed.) CitationAcs, Zoltán J. Has the Role of Small Firms Changed in the United States? WZB, 1991.
Warning: These citations may not always be 100% accurate.