Autor: S. A. Kramer

S. A. Kramer: Basketball’s Greatest Players

S. A. Kramer: Baseball’s Greatest Hitters

S. A. Kramer: Submarines

S. A. Kramer: TY COBB

S. A. Kramer: To the Top!

S. A. Kramer & George Ulrich: Who Was Daniel Boone?

S. A. Kramer: Who Was Ferdinand Magellan?