Bittel, L. R., Ramsey, J. E., & Bittel, M. A. (1985). Encyclopedia of professional management (2nd edition.). Grolier International.
Čikaški stil citiranja (17. izdanje)Bittel, Lester R., Jackson Eugene Ramsey, i Muriel Albers Bittel. Encyclopedia of Professional Management. 2nd edition. Danbury, Connecticut: Grolier International, 1985.
MLA način citiranja (9. izdanje)Bittel, Lester R., et al. Encyclopedia of Professional Management. 2nd edition. Grolier International, 1985.
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