Young, H., & Burke, M. (2000). Competition and Custom in Economic Contracts: A Case Study of Illinois Agriculture. Department of Economics (Johns Hopkins University).
Chicago-referens (17:e uppl.)Young, H., och M. Burke. Competition and Custom in Economic Contracts: A Case Study of Illinois Agriculture. Department of Economics (Johns Hopkins University), 2000.
MLA-referens (9:e uppl.)Young, H., och M. Burke. Competition and Custom in Economic Contracts: A Case Study of Illinois Agriculture. Department of Economics (Johns Hopkins University), 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.