ENCYCLOPEDIA OF PROFESSIONAL. & BITTEL, L. R. e. [. (1978). Encyclopedia of professional management/editor Lester Robert Bittel et.al. Grolier International.
Citazione stile Chigago Style (17a edizione)ENCYCLOPEDIA OF PROFESSIONAL. e Lester Robert et.al [ed] BITTEL. Encyclopedia of Professional Management/editor Lester Robert Bittel Et.al. Danbury: Grolier International, 1978.
Citatione MLA (9a ed.)ENCYCLOPEDIA OF PROFESSIONAL. e Lester Robert et.al [ed] BITTEL. Encyclopedia of Professional Management/editor Lester Robert Bittel Et.al. Grolier International, 1978.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.