00619nam a2200193Ia 4500 CTU_220605 210402s9999 xx 000 0 und d 621.042 C437 Challoner, Jack Energy Jack Challoner London Dorling Kindersley 1993 Surveys various sources of energy and the ways in which they have been harnessed Power resources,Force and energy,Nguồn điện,Lực và năng lượng Tuyến Trung tâm Học liệu Trường Đại học Cần Thơ