Directory of Fee-Based Information Services, 1978-79
Warnken, Kelly
Directory of Fee-Based Information Services, 1978-79 - New York: Kelly Wornken, 1978 - i, 96p.
Information services
Index Supplement
D 002:659.2(058.7) / L8
Directory of Fee-Based Information Services, 1978-79 - New York: Kelly Wornken, 1978 - i, 96p.
Information services
Index Supplement
D 002:659.2(058.7) / L8