Dyfyniad APA

Bittel, L. R. (1978). Encyclopaedia of professional management. Grolier.

Dyfyniad Arddull Chicago

Bittel, Lester Robert. Encyclopaedia of Professional Management. Connecticut: Grolier, 1978.

Dyfyniad MLA

Bittel, Lester Robert. Encyclopaedia of Professional Management. Grolier, 1978.

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