KRANZ GARRY. (2007). BEST PRACTICES: COMMUNICATING EFFECTIVELY. HARPER COLLINS PUBLISHERS.
Chicago-viite (17. p.)KRANZ GARRY. BEST PRACTICES: COMMUNICATING EFFECTIVELY. NEW YORK: HARPER COLLINS PUBLISHERS, 2007.
MLA-viite (9. p.)KRANZ GARRY. BEST PRACTICES: COMMUNICATING EFFECTIVELY. HARPER COLLINS PUBLISHERS, 2007.
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