Ullrich, W. Employability: Wolfgang Ullrich. Bologna-Bestiarium.(2013).
Chicagoスタイル(17版)引用形式Ullrich, Wolfgang. "Employability: Wolfgang Ullrich." Bologna-Bestiarium.(2013) .
MLA(8版)引用形式Ullrich, Wolfgang. "Employability: Wolfgang Ullrich." Bologna-Bestiarium.(2013), .
警告: この引用は必ずしも正確ではありません.