The Door Into Summer

From Author Wars - https://authorwars.com/publications/the-door-into-summer-263311.html

Overview:

Title: The Door Into Summer
Author: Robert A. Heinlein
Year: Unknown
ISBN-10: 0451085744
Publisher: Signet / New American Library
Price: $1.75
Pages: 159
Binding: Paperback
Type: Novel
Title Reference: The Door Into Summer
Notes:
14th printing as per number line.