Showing 1 - 2 results of 2 for search 'Hartshorn, Gerald G.', query time: 0.01s Refine Results
  1. 1
    Audience research sourcebook
    by Hartshorn, Gerald G.
    Published 1991
    Other Authors: “…Hartshorn, Gerald G.…”
    Book
  2. 2
    Numbers to dollars : using audience estimates to sell radio
    by Heath, Julie
    Published 1991
    Other Authors:
    Book

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