APA

Estados Unidos. Department of Energy, Natural Gas Conference (1997 mar. 24-27 : Houston T. & Estados Unidos. Department of Energy. (1997). Emerging technologies for the natural gas industry in the spotlight. [s.l.]: Federal Energy Technology Center.

Chicago

Estados Unidos. Department of Energy, Natural Gas Conference (1997 mar. 24-27 : Houston Texas) and Estados Unidos. Department of Energy. 1997. Emerging technologies for the natural gas industry in the spotlight. [s.l.]: Federal Energy Technology Center.

Harvard

Estados Unidos. Department of Energy, Natural Gas Conference (1997 mar. 24-27 : Houston T. and Estados Unidos. Department of Energy. (1997). Emerging technologies for the natural gas industry in the spotlight. [s.l.]: Federal Energy Technology Center.

MLA

Estados Unidos. Department of Energy, Natural Gas Conference (1997 mar. 24-27 : Houston Texas) and Estados Unidos. Department of Energy. Emerging technologies for the natural gas industry in the spotlight. [s.l.]: Federal Energy Technology Center. 1997.