APA

INDEPENDENT ENERGY, . (1997). THE 1998 INTERNATIONAL POWER INDUSTRY DIRECTORY. : .

Chicago

INDEPENDENT ENERGY, . 1997. THE 1998 INTERNATIONAL POWER INDUSTRY DIRECTORY. : .

Harvard

INDEPENDENT ENERGY, . (1997). THE 1998 INTERNATIONAL POWER INDUSTRY DIRECTORY. : .

MLA

INDEPENDENT ENERGY, . THE 1998 INTERNATIONAL POWER INDUSTRY DIRECTORY. : . 1997.