Johnsson, H. (1990). Professional communications for a change. Prentice-Hall.
Čikaški stil citiranja (17. izdanje)Johnsson, Hans. Professional Communications for a Change. New York: Prentice-Hall, 1990.
MLA način citiranja (9. izdanje)Johnsson, Hans. Professional Communications for a Change. Prentice-Hall, 1990.
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