Mike Schmidt's 1976 four-home run game at Wrigley Field
Dick Allen, The Life and Times of a Baseball Immortal
Dick Allen, The Life and Times of a Baseball Immortal
Mike Schmidt hits 4 homers 4/17/76 #philliesbaseball
Philadelphia Phillies, History & Notable Players
Astrodome barely contains Mike Schmidt's blast
4/17/1976 Phillies at Cubs
Mike Schmidt's 4 Home Run Day & Bio
Don Money – Society for American Baseball Research