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

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

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

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

The Rival Rigelians / Nebula Alert Ace double Mack Reynolds / A Bertram Chandler

The Rival Rigelians/Nebula Alert Mack Reynolds/A. Bertram Chandler Ace G-632

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

Nebula Alert/Rival Rigelians (Chandler, A. Bertram/Reynolds, Mack) (Ace G-632)