کتاب های Charles Hertan
Forcing Chess Moves: The Key to Better Calculation
Charles Hertan, 2008
Forcing chess moves : the key to better calculation
Hertan, Charles, 2008
Basic Chess Openings for Kids: Play Like a Winner from Move One
Charles Hertan, 2015
Forcing Chess Moves: The Key to Better Calculation
Charles Hertan, 2008
