Comic Title: Avengers #40
Publisher: Marvel (Vista Publications Inc.)
Address: 625 Madison Avenue, New York, NY
Cover Date: May 1967
On Sale Date: March 14, 1967 Copyright Date March 14, 1967
Source: Library of Congress, Periodicals 1967

Newsstand Date March 14, 1967
Source: Newsdealer Magazine, V22 #1

Frequency: Monthly
Cover Price: $0.12
Page Count: 32
Editor: Stan Lee

Title: "Suddenly... the Sub-Mariner"
Pages: 20

Feature(s):
Avengers

Writer: Roy Thomas
Penciller: Don Heck
Inker: George Roussos
Letterer: Sam Rosen

Reprinted In:
Avengers #46 (1974)
Avengers #47 (1974)
Marvel Triple Action #32 (1976)
Essential Avengers Vol. 2 TPB (2000)
Marvel Masterworks Vol. 38:Avengers Vol. 4 HC (2005)
Marvel Masterworks Vol. 38:Avengers Vol. 4 HC [Variant] (2005)
Marvel Masterworks:The Avengers Vol. 4 TPB (2012)
Marvel Masterworks:The Avengers Vol. 4 TPB [Variant] (2012)
Avengers Omnibus Vol. 2 HC (2015)
Avengers Omnibus Vol. 2 HC [Variant] (2015)
Avengers Epic Collection:Once an Avenger... TPB (2017)

Feature Character(s)

• Avengers (chronology forthcoming)
• Captain America (chronology forthcoming)
• Goliath (chronology forthcoming)
• Wasp (chronology forthcoming)
• Hawkeye (chronology forthcoming)
• Quicksilver (chronology forthcoming)
• Scarlet Witch (chronology forthcoming)

Guest Star(s)

• Hercules (chronology forthcoming)
• Sub-Mariner (chronology forthcoming)
• Black Widow (chronology forthcoming)

Villain(s)

• Mole Man (chronology forthcoming)

Guest Appearance(s)

• Thunderbolt Ross (chronology forthcoming)