Barnabas, B. (1984). Develop your power to deal with people. Parker Publishing.
Čikaški stil citiranja (17. izdanje)Barnabas, Bentley. Develop Your Power to Deal with People. India: Parker Publishing, 1984.
MLA način citiranja (8. izdanje)Barnabas, Bentley. Develop Your Power to Deal with People. Parker Publishing, 1984.
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