Kojima, Masami. Breathing clean : considering the switch to natural gas buses / Masami Kojima. - ix, 50 pages ; 28 cm. cm. - World Bank technical paper, no. 516 0253-7494 ; . - World Bank e-Library. . Includes bibliographical references. ISBN: 0821350404 LCCN: 2001046930 Subjects--Topical Terms: Buses.Compressed natural gas.Fuel switching--Environmental aspects.Gas industry.Liquefied natural gas.Spark ignition engines--Alternative fuels. LC Class. No.: TL232 / .K67 2001 Dewey Class. No.: 629.25/38