Introduction (The Visitor)

From Author Wars - https://authorwars.com/books/introduction-the-visitor-852989.html

Overview:

Title: Introduction (The Visitor)
Author: Poul Anderson
Year: 1989
Type: Essays

Editions/Publications:

Unknown. Heads to the Storm (Unknown, Poul Anderson, Baen Books, ISBN-10: 0671698478, $3.50, 273 pages, Paperback, Anthology)