Hertan, C. (2011). Power chess for kids: Learn how to think ahead and become one of the best players in your school. New in Chess.
Цитирование в стиле Чикаго (17-е изд.)Hertan, Charles. Power Chess for Kids: Learn How to Think Ahead and Become One of the Best Players in Your School. Alkmaar, Netherlands: New in Chess, 2011.
Цитирование MLA (8-е изд.)Hertan, Charles. Power Chess for Kids: Learn How to Think Ahead and Become One of the Best Players in Your School. New in Chess, 2011.
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