Zelko, H. P. (1950). Instructor's guide for developing successful speakers: Effective speech in human relations; in public; and in business. National Foremen's Institute.
Chicago Style (17th ed.) CitationZelko, Harold P. Instructor's Guide for Developing Successful Speakers: Effective Speech in Human Relations; in Public; and in Business. New London, Ct: National Foremen's Institute, 1950.
MLA (9th ed.) CitationZelko, Harold P. Instructor's Guide for Developing Successful Speakers: Effective Speech in Human Relations; in Public; and in Business. National Foremen's Institute, 1950.
Warning: These citations may not always be 100% accurate.