APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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