HARLOW, R. A. M. (1999). YOUNG DISCOVERERS ENERGY AND POWER ENVIRONMENTAL FACTS AND EXPERIMENTS.
Cita Chicago Style (17a ed.)HARLOW, ROSIE AND MORGAN. YOUNG DISCOVERERS ENERGY AND POWER ENVIRONMENTAL FACTS AND EXPERIMENTS. 1999.
Cita MLA (9a ed.)HARLOW, ROSIE AND MORGAN. YOUNG DISCOVERERS ENERGY AND POWER ENVIRONMENTAL FACTS AND EXPERIMENTS. 1999.
Precaución: Estas citas no son 100% exactas.