Sandworm #4, Spring 1968

From Author Wars - https://authorwars.com/books/sandworm-4-spring-1968-2844467.html

Overview:

Title: Sandworm #4, Spring 1968
Author: Robert E. Vardeman
Year: 1968
Type: Magazine Editor
Series: Sandworm

Variant Titles:

1968. Sandworm #4, Spring 1968