Copyright © National Periodical Publications, Inc., 1967. Also designated on cover as 80 Page Giant (DC, 1964 series) #G34 and as G-34 on indicia page.
On-sale date from copyright registration.
Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Page 8 is a half page and page 15 is a three-quarter page.
Letters from readers - John Long, Terry Edwards, Clifton Dodd and Hal Marzell.
Page 8 is a half page and page 15 is a two-thirds page.
Story in two chapters of 6.67 and 7.5 pages.