I'm Going Through the Door

From Author Wars - https://authorwars.com/books/im-going-through-the-door-190075.html

Overview:

Title: I'm Going Through the Door
Author: William Coyne
Year: 1976
Type: Short Fiction

Editions/Publications:

Unknown. Galaxy, May 1976 (Unknown, William Coyne, UPD Publishing Corporation, $1.00, 164 pages, digest, MAGAZINE)