Mars Confidential
Howard Browne
Martian V.F.W.
G. L. Vandenburg
Master of Chaos
Michael Moorcock
A Matter of Magnitude
Al Sevcik
Measure for a Loner
Jim Harmon
Measureless to Man
Marion Zimmer Bradley
Medal of Honor
Mack Reynolds
Membership Drive
Murray F. Yaco
The Memory of Mars
Raymond F. Jones
Midnight in the Mirror World
Fritz Leiber
Minnesota Gothic
Thomas M. Disch
Minor Detail
Jack Sharkey