Mark Mumper
Source: "Mark Mumper Bibliography." Author Wars, https://authorwars.com/authors/mark-mumper.html".
Titles:
Essays
- Unknown. Letter (Algol, Summer-Fall 1977)
- Unknown. Letter (Algol, Winter 1976)
- Unknown. Letter (Amazing Stories, January 1973)
- Unknown. Letter (Amazing Stories, November 1969)
- Unknown. Letter (Moebius Trip Library: Science Fiction Echo 17)
- Unknown. Letter (Riverside Quarterly, February 1972)
- Unknown. Letter (SF Commentary 33)
- Unknown. Letter (SF Commentary 47)
- Unknown. Letter (The Alien Critic #6)
- Unknown. Letter [2] (SF Commentary 33)
- Unknown. Letters (Riverside Quarterly, August 1972)
- Unknown. SF: A Literature of Humanity
- 1973. Letter (Algol 20, May 1973)