Lesley, P. E. (1991). Lesly`s handbook of public relations and communications (Ed.4.).
Chicago Stili AlıntıLesley, Philip; Ed. Lesly`s Handbook of Public Relations and Communications. Ed.4. Bombay, Jaico Publishing, 1991.
MLA AlıntıLesley, Philip; Ed. Lesly`s Handbook of Public Relations and Communications. Ed.4. 1991.
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