2.
Notable Twentieth-Century Scientists " Only Available As A 4 Volume Set-See Isbn 0810391813 "
by Emily J.;Valade, Roger M. I...
ISBN: 9780810391826
3.
Schomburg Essential Black Literature Guide
by Valade, Roger M.
ISBN: 9780787607340
List Price: $17.95
4.
The Essential Black Literature Guide - Roger M. Valade,III - Paperback
by Valade, Roger M., III
ISBN: 9781578590551
List Price: $5.99