Head, Sydney W. Broadcasting in America : a survey of electronic media / Sydney W. Head, Christopher H. Sterling, Lemuel B. Schofield - 7th ed. - Boston, Mass. : Houghton Mifflin, c1994 - 579 p. : ill. Includes bibliographical references and index ISBN: 0395673313 Subjects--Topical Terms: BROADCASTING--UNITED STATES LC Class. No.: HE8689.8 / H422B 1994