"Grim Wit Intro [#1]" aka "Harrowing Heights"
1) Grim Wit #1. 1972. Rip Off Press/Last Gasp Eco-Funnies. B&W.
2) The Odd Comic World of Richard Corben. 1978. Warren. B&W.
3) Richard Corben Complete Works #2. 1986. Catalan. B&W.

In Spain:
4) Richard Corben obras completas #5. 1985. Toutain Editor.