Fletcher , J. E. (1981). Handbook of radio and tv broadcasting: Research procedures in audience, program and revenues. Van Nostrand Reinhold.
Chicago-čujuhus (17. p.)Fletcher , James E. Handbook of Radio and Tv Broadcasting: Research Procedures in Audience, Program and Revenues. NewYork: Van Nostrand Reinhold, 1981.
MLA-čujuhus (9. p.)Fletcher , James E. Handbook of Radio and Tv Broadcasting: Research Procedures in Audience, Program and Revenues. Van Nostrand Reinhold, 1981.
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