Dyfyniad APA

Whalen, D. (2007). The professional communications toolkit D. Joel whalen. Sage Publications.

Dyfyniad Arddull Chicago

Whalen, D.Joel. The Professional Communications Toolkit D. Joel Whalen. Sage Publications, 2007.

Dyfyniad MLA

Whalen, D.Joel. The Professional Communications Toolkit D. Joel Whalen. Sage Publications, 2007.

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