Henning, J. H. (1966). Improving oral communication. McGraw Hill.
Chicago Style (17th ed.) CitationHenning, James H. Improving Oral Communication. New York: McGraw Hill, 1966.
MLA (9th ed.) CitationHenning, James H. Improving Oral Communication. McGraw Hill, 1966.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.