GMCs and Planet Building

From Author Wars - https://authorwars.com/books/gmcs-and-planet-building-121068.html

Overview:

Title: GMCs and Planet Building
Author: Stephen L. Gillett
Year: 1993
Type: Essays

Editions/Publications:

Unknown. Amazing Stories, August 1993 (Unknown, Stephen L. Gillett, TSR, $3.95, 100 pages, bedsheet, MAGAZINE)