Não informado. (1971). Bulletin of Economic Research. University of Hull, Department of Economics.
Chicagoスタイル(17版)引用形式Não informado. Bulletin of Economic Research. Hull, Inglaterra: University of Hull, Department of Economics, 1971.
MLA(8版)引用形式Não informado. Bulletin of Economic Research. University of Hull, Department of Economics, 1971.
警告: この引用は必ずしも正確ではありません.