| Issue | #421 |
| Published | February 1973 |
| Cover Price | 0.20 |
| Pages | 36 |
| Editing | Julius Schwartz |
| Notes | Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. [July 2007] |
| Characters | Superman; Captain Strong |
| Genre | Super-hero |
| Pencils | Nick Cardy |
| Inks | Nick Cardy |
| Notes | Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. [July 2007] |
| Characters | Captain Strong (intro); Superman; Billy Anders |
| Genre | Super-hero |
| Script | Cary Bates |
| Pencils | Curt Swan |
| Inks | Murphy Anderson |
| Notes | Capt Strong is a Popeye take-off |
| Reprinted | in Best of DC, The (DC, 1979 series) #48 |
| Letters | typeset |
| Editing | E. Nelson Bridwell |
| Notes | Includes a letter from Bob Rozakis |
| Characters | Green Arrow; Black Canary; Lucas Branson |
| Genre | Super-hero |
| Script | Elliot S! Maggin |
| Pencils | Sal Amendola |
| Inks | Dick Giordano |
| Notes | From the strip featured in The Flash; most feature Black Canary as a co-star, sometimes sharing the logo. Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (April 2007). |