Wrangham, D. A. The theory & practice of Heat engines / D.A.Wrangham, - London: The English language book society and cambidge university press. c1942. - xii, 872 p. illus. 24 cm. Includes index. LCCN: 78027757 Subjects--Topical Terms: Heat-engines LC Class. No.: TJ265 / .A76 Dewey Class. No.: 621.4025/WRT