Booher Dianna. (2007). The Voice of Authority: 10 Communication Strategies Every Leader Needs to Know. New York: McGraw -Hill.
Styl ChicagoBooher Dianna. The Voice of Authority: 10 Communication Strategies Every Leader Needs to Know. New York: McGraw -Hill, 2007.
Citace podle MLABooher Dianna. The Voice of Authority: 10 Communication Strategies Every Leader Needs to Know. New York: McGraw -Hill, 2007.
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