Nebula Alerts/The Rival Rigelians Ace Double 1967 G-632 Very Good

Ace Double G-632: THE RIVAL RIGELIANS by Reynolds/NEBULA ALERT by Chandler. 1967

NEBULA ALERT (A. Bertram Chandler)/THE RIVAL RIGELIANS (Mack Reynolds) 1967 Ace

Falling for the Amish Rival An - VERY GOOD

The Rival - VERY GOOD

Mack Reynolds - The Rival Rigelians & A Bertram Chandler - Nebula Alert Ace 1967

Ace Double. Nebula Alert A Bertram Chandler. Rival Rigelians Mack Reynolds. 1967

Ace Double #G-632: Nebula Alert (Chandler) & The Rival Rigelians (Reynolds)