Comic Title: Superboy & the Legion of Super-Heroes #240
Publisher: DC (DC Comics Inc.)
Address: 75 Rockefeller Plaza, New York, NY
Cover Date: June 1978
On Sale Date: March 21, 1978 Newsstand Date March 21, 1978
Source: Comic Reader, #154

Newsstand Date March 21, 1978
Source: DC Coming Attractions, #16
For Release the week of March 21st

Copyright Date March 21, 1978
Source: Library of Congress, Copyright Office 1978

Newsstand Date March 20, 1978
Source: Daily Planet, Vol. 78 #11
Listed as on sale the week of March 20th

Shipping Date February 28, 1978
Source: DC Coming Attractions, #16
Shipping the week of February 28th

Frequency: Monthly
Cover Price: $0.60
Page Count: 48
Editor: Allen Milgrom

See Also: The Guide to DC Giants

Title: "The Man Who Manacled the Legion"
Pages: 22

Feature(s):
Legion of Super-Heroes (of Earth-1)

Plotter: Paul Levitz
Scripter: Jack C. Harris
Penciller: Howard Victor Chaykin
Inker: Bob Wiacek
Letterer: Shelly Leferman
Colorist: Cornelia Adams

Reprinted In:
Superboy and the Legion of Super-Heroes Vol. 1 HC (2017)

Feature Character(s)

• Legion of Super-Heroes (last appearance in Superboy & the Legion of Super-Heroes #239; next appearance in DC Comics Presents #2)
• Colossal Boy (last appearance in Superboy & the Legion of Super-Heroes #239; next appearance in Superboy & the Legion of Super-Heroes #242)
• Cosmic Boy (last appearance in Superboy & the Legion of Super-Heroes #237; next appearance in DC Comics Presents #2)
• Phantom Girl (last appearance in Superboy & the Legion of Super-Heroes #239; next appearance in Superboy & the Legion of Super-Heroes #241)
• Sun Boy (last appearance in Superboy & the Legion of Super-Heroes #239; next appearance in Superboy & the Legion of Super-Heroes #241)
• Superboy (last appearance in Superboy & the Legion of Super-Heroes #239; next appearance in DC Comics Presents #2)

Villain(s)

• Grimbor (last appearance in Superboy #221; next appearance in Legion of Super-Heroes #277)