Captain America 70th Anniversary Magazine #20
Title: “Captain America Joins...The Avengers!”
Medium: comic
Cover date: Winter 2011
Publisher:
17 characters in this story:
This comic was reprinted from: The Avengers (vol. 1) #4 (Mar. 1964): "Captain America Joins...The Avengers!".
The indicia for this publication identifies it as Captain America 70th Anniversary Magazine #20, but it is not clear what this numbering refers to. What series (or even group of comics) is this issue the twentieth issue of?