Tohutoro APA (7th ed.)
Hybels, S., & Weaver, R. L. . I. (1989). Communicating effectively (2nd ed.). McGraw-Hill.
Tohutoru Kātū Chicago (17th ed.)
Hybels, Saundra, me Richard L II Weaver. Communicating Effectively. 2nd ed. NEw York: McGraw-Hill, 1989.
Tohutoro MLA (9th ed.)
Hybels, Saundra, me Richard L II Weaver. Communicating Effectively. 2nd ed. McGraw-Hill, 1989.
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