Brain Training Puzzles Difficult Book 2. Carlton Pub.
Chicagoスタイル(17版)引用形式Brain Training Puzzles Difficult Book 2. London: Carlton Pub.
MLA(9版)引用形式Brain Training Puzzles Difficult Book 2. Carlton Pub.
警告: この引用は必ずしも正確ではありません.
Brain Training Puzzles Difficult Book 2. Carlton Pub.
Chicagoスタイル(17版)引用形式Brain Training Puzzles Difficult Book 2. London: Carlton Pub.
MLA(9版)引用形式Brain Training Puzzles Difficult Book 2. Carlton Pub.