Cockrum covers rough shown in The Comics Journal (Fantagraphics, 1977 series) #48 (Summer 1979).
DeZuniga credits from The Comic Reader (Street Enterprises, 1973 series) #177 (February 1980) (credit information from Nick Caputo and Jeff Clem).
Logo design credit from Todd Klein via his Facebook posting Comics Logos C #4: CALEB HAMMER on 30 June 2021.