Scheel, Lyman F. Gas and air compression machinery/ Lyman F. Scheel; assisted by Alanson K. Hegeman - New York: McGraw-Hill, 1961 - xx, 338 p.: ill.; 24 cm. Includes index ISBN: $ 12.00 Subjects--Topical Terms: GasesCompressed airPneumaticsValves Dewey Class. No.: 621.5