Bittel, L. R. (1978). Encyclopaedia of professional management. Grolier.
シカゴスタイル引用形Bittel, Lester Robert. Encyclopaedia of Professional Management. Connecticut: Grolier, 1978.
MLA引用形式Bittel, Lester Robert. Encyclopaedia of Professional Management. Grolier, 1978.
警告: この引用は必ずしも正確ではありません.