Παραπομπή APA

Irwin, J. V. (1982). Speaking effectively, Teacher's Guide. New York: Holt Rinehart and Winston.

Παραπομπή Chicago Style

Irwin, J. V. Speaking Effectively, Teacher's Guide. New York: Holt Rinehart and Winston, 1982.

Παραπομπή MLA

Irwin, J. V. Speaking Effectively, Teacher's Guide. New York: Holt Rinehart and Winston, 1982.

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