Notes:
copyright 1936-1939 by NEA Service, Inc.; 1938 by Bell Syndicate, Inc.; 1938 by Publisher's Syndicate, Inc.; 1939 by R. S. Callander; 1939 by Stephen Slesinger; 1939 by Edgar Rice Burroughs, Inc. and 1939 by Famous Artists Syndicate, Inc. Distributed by American News Company.
The on-sale date is from the publication date recorded in the Catalog of Copyright Entries, Part 2, Periodicals, 1940, New Series, Vol. 35, No. 3.