49 commercials (on 15 videoreels) : sd., col. ; 2 in.
Political Commercial Archive, Dept. of Communication, University of Oklahoma, Burton Hall, Norman, OK 73019.
Commercials used during Derryberry's 1970 campaign and 1974 re-election campaign for the state attorney general elections and during his campaign for the 1978 gubernatorial election in Oklahoma, Democratic party.
Computer database of ca. 56,000 individual commercials.