What If?

(1977) #21

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• penciller

  Sal Buscema

• penciller (cover)

  Gene Colan

• inker

  Mike Esposito

• inker

  Al Milgrom

• inker

  Bob Wiacek

• colorist

  Carl Gafford

• writer

  Bill Mantlo

• letterer

  Tom Orzechowski

• letterer

  Irving Watanabe

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All data from the awesome folks at Marvel.