APA

Fijii T., Takeuchi Y., International Gas Union I. & World Gas Conference (23rd. : 2006 jun 5-9 : Amsterdam T. N.Sustainable urban system design. : .

Chicago

Fijii Takashi, Takeuchi Yuichi, International Gas Union IGU and World Gas Conference (23rd. : 2006 jun 5-9 : Amsterdam The Netherlands).Sustainable urban system design. : .

Harvard

Fijii T., Takeuchi Y., International Gas Union I. and World Gas Conference (23rd. : 2006 jun 5-9 : Amsterdam T. N.Sustainable urban system design. : .

MLA

Fijii Takashi, Takeuchi Yuichi, International Gas Union IGU and World Gas Conference (23rd. : 2006 jun 5-9 : Amsterdam The Netherlands).: . .