Power Play
Bright Futures Development has announced the invention of a powerful new solar energy cell, and the Hardy boys have gone undercover to protect it from industrial spies.
Bright Futures Development has announced the invention of a powerful new solar energy cell, and the Hardy boys have gone undercover to protect it from industrial spies.
Sagebrush Education Resources · inglés · ISBN 9780833571922
Archway · inglés
Pocket Books · inglés · ISBN 9780671700478
