APA

Nakicenovic N., International Gas Union I. & International Institute for Applied Systems Analysis I. (2000). Global natural gas perspectives. [s.l.]: International Gas Union, IGU.

Chicago

Nakicenovic Nebojsa, International Gas Union IGU and International Institute for Applied Systems Analysis IIASA. 2000. Global natural gas perspectives. [s.l.]: International Gas Union, IGU.

Harvard

Nakicenovic N., International Gas Union I. and International Institute for Applied Systems Analysis I. (2000). Global natural gas perspectives. [s.l.]: International Gas Union, IGU.

MLA

Nakicenovic Nebojsa, International Gas Union IGU and International Institute for Applied Systems Analysis IIASA. Global natural gas perspectives. [s.l.]: International Gas Union, IGU. 2000.