John Duffy
Letterer 6
| Title | Number | Date | Format | |
|---|---|---|---|---|
 | "Who Strikes For Atlantis?" #4 | Vol. 1 #4 | 1968-08 | Softcover |
 | Death at the End of the World! #23 | Vol. 1 #23 | 1972-11 | Softcover |
 | "A Taste of Madness!" #25 | Vol. 1 #25 | 1973-03 | Softcover |
 | Countdown To Chaos! #118 | Vol. 1 #118 | 1973-03 | Softcover |
 | The Threat of the Torrid Twosome #6 | Vol. 1 #6 | 1975-07 | Softcover |
 | "Spider-Man" #1 | Vol. 1 #1 | 1977-09 | Trade Paperback |