Gaya APA

Bittel, L, R., Ramsey, J, E. (1985). Encyclopedia of professional management (Volume 1 dan Volume 2). Danbury, Connecticut: Grolier International.

Gaya MLA

Bittel, Lester, Robert., Ramsey, Jackson, E.. "Encyclopedia of professional management". Volume 1 dan Volume 2 Danbury, Connecticut: Grolier International, 1985. Text.