Dyfyniad APA

MANDEL STEVE. (2000). EFFECTIVE PRESENTATIONS SKILLS (3RD.). CRISP PUBLICATION.

Dyfyniad Arddull Chicago

MANDEL STEVE. EFFECTIVE PRESENTATIONS SKILLS. 3RD. CALIFORNIA: CRISP PUBLICATION, 2000.

Dyfyniad MLA

MANDEL STEVE. EFFECTIVE PRESENTATIONS SKILLS. 3RD. CRISP PUBLICATION, 2000.

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