RICHARDSON LEE. (1969). DIMENSIONS OF COMMUNICATIONS. PRENTICE -HALL INTERNATIONAL, INC.
Lua i Stíl Chicago (17ú heag.)RICHARDSON LEE. DIMENSIONS OF COMMUNICATIONS. NEW JERSEY: PRENTICE -HALL INTERNATIONAL, INC, 1969.
Lua MLA (9ú heag.)RICHARDSON LEE. DIMENSIONS OF COMMUNICATIONS. PRENTICE -HALL INTERNATIONAL, INC, 1969.
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