PLACKARD, D. H. Blueprint for public relations. McGraw-Hill Book Company.
Chicago Style (17th ed.) CitationPLACKARD, Dwight Hillis. Blueprint for Public Relations. McGraw-Hill Book Company.
ציטוט MLAPLACKARD, Dwight Hillis. Blueprint for Public Relations. McGraw-Hill Book Company.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.