APA

International Gas Union I., Hitachi, Sustainable Urban Systems Design International Competition, World Gas Conference (22nd. : 2003 jun 1-5 : Tokyo), International Gas Union I., Hitachi & World Gas Conference (22nd. : 2003 jun 1-5 : Tokyo).Japan (tyo_e.2003.PRJ). : .

Chicago

International Gas Union IGU, Hitachi, Sustainable Urban Systems Design International Competition, World Gas Conference (22nd. : 2003 jun 1-5 : Tokyo), International Gas Union IGU, Hitachi and World Gas Conference (22nd. : 2003 jun 1-5 : Tokyo).Japan (tyo_e.2003.PRJ). : .

Harvard

International Gas Union I., Hitachi, Sustainable Urban Systems Design International Competition, World Gas Conference (22nd. : 2003 jun 1-5 : Tokyo), International Gas Union I., Hitachi and World Gas Conference (22nd. : 2003 jun 1-5 : Tokyo).Japan (tyo_e.2003.PRJ). : .

MLA

International Gas Union IGU, Hitachi, Sustainable Urban Systems Design International Competition, World Gas Conference (22nd. : 2003 jun 1-5 : Tokyo), International Gas Union IGU, Hitachi and World Gas Conference (22nd. : 2003 jun 1-5 : Tokyo).: . .