00380nam a2200169Ia 4500 210210b1961 xxu||||| |||| 00| 0 eng d eng 539/15 CLARK (John A) and others Energy and engines London Longman 1961 72 engines Energy Physics 009031 126743 126743 0 0 0 2 Physics AL AL 2021-02-17 0.00 0 539/15 009031 2021-02-17 00:00:00 2021-02-17 BK