Gaya APA

John Nunn's Chess Puzzle Book. (2009). : .

Gaya Chicago

John Nunn's Chess Puzzle Book. . : , 2009. Text.

Gaya MLA

John Nunn's Chess Puzzle Book. . : , 2009. Text.

Gaya Turabian

John Nunn's Chess Puzzle Book. : , 2009. Print.