NATARAJAN,HEMA. (2004). MATH PUZZLES FOR THE CLEVER MIND.
Cita Chicago (17th ed.)NATARAJAN,HEMA. MATH PUZZLES FOR THE CLEVER MIND. 2004.
Cita MLA (9th ed.)NATARAJAN,HEMA. MATH PUZZLES FOR THE CLEVER MIND. 2004.
Atenció: Aquestes cites poden no estar 100% correctes.