Kojima, Masami Breathing clean : considering the switch to natural gas buses / Masami Kojima - Washington : World Bank, c2001. - ix, 50 p. : 28 cm. - World Bank technical paper, 0253-7494 ; no. 516 . ISBN: 0821350404 LCCN: Subjects--Topical Terms: BusesGas industryCompressed natural gas LC Class. No.: TL232 / .K67 2001 Dewey Class. No.: 629.2538 / K79b