Não informado. (2008). Agricultural Economics and Farm Management Occasional Paper. University of Quensland, Department of Agriculture.
Chicago-referens (17:e uppl.)Não informado. Agricultural Economics and Farm Management Occasional Paper. Brisbane, Australia: University of Quensland, Department of Agriculture, 2008.
MLA-referens (8:e uppl.)Não informado. Agricultural Economics and Farm Management Occasional Paper. University of Quensland, Department of Agriculture, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.