Cita APA (7a ed.)
Hybels, S., & Weaver, R. L. . I. (1989). Communicating effectively (2nd ed.). McGraw-Hill.
Cita Chicago Style (17a ed.)
Hybels, Saundra, y Richard L II Weaver. Communicating Effectively. 2nd ed. NEw York: McGraw-Hill, 1989.
Cita MLA (9a ed.)
Hybels, Saundra, y Richard L II Weaver. Communicating Effectively. 2nd ed. McGraw-Hill, 1989.
Precaución: Estas citas no son 100% exactas.