TY  - BOOK
AU  - Head,Sydney W.
AU  - Sterling,Christopher H.
AU  - Eastman,Susan Tyler
AU  - Schofield,Lemuel B.
TI  - Broadcasting in America: a survey of electronic media 
SN  - 0395432537
PY  - 1990///
CY  - Boston, Mass.
PB  - Houghton Mifflin
KW  - Broadcasting--United States
N1  - Includes bibliographical references (p. 549-578)
ER  -