Grolier international. (1987). Grolier academic encyclopedia: Vol :15. Grolier international, Acamedic American.
Čikaški stil citiranja (17. izdanje)Grolier international. Grolier Academic Encyclopedia: Vol :15. USA: Grolier international, Acamedic American, 1987.
MLA način citiranja (9. izdanje)Grolier international. Grolier Academic Encyclopedia: Vol :15. Grolier international, Acamedic American, 1987.
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