The Lost Worlds of 2001

From Author Wars - https://authorwars.com/publications/the-lost-worlds-of-2001-272597.html

Overview:

Title: The Lost Worlds of 2001
Author: Arthur C. Clarke
Year: Unknown
Publisher: Signet
Price: $1.50
Pages: 240
Binding: Paperback
Type: Collection
Title Reference: The Sentinel
Notes:
- "The Sentinel" Copyright 1950 by Arthur C. Clarke.
- Copyright 1972 by Arthur C. Clarke.
- First printing January 1972.
- Fourth printing by line number.
- No printing date in/on book.
- Signet*451-W5891*$1.50 to Signet logo at top right front cover.
- 451-W5891-150 (over) Science-Fiction at bottom spine.
- Signet logo (over) Signet (over) W (over) 5891 at top spine. W5891 in bold lettering and is the company identifier for the book.