APA

United States, . (1990). Assumptions for the Annual energy outlook. Washington: Energy Information Administration, Office of Energy Markets and End Use, U.S. Dept. of Energy.

Chicago

United States, . 1990. Assumptions for the Annual energy outlook. Washington: Energy Information Administration, Office of Energy Markets and End Use, U.S. Dept. of Energy.

Harvard

United States, . (1990). Assumptions for the Annual energy outlook. Washington: Energy Information Administration, Office of Energy Markets and End Use, U.S. Dept. of Energy.

MLA

United States, . Assumptions for the Annual energy outlook. Washington: Energy Information Administration, Office of Energy Markets and End Use, U.S. Dept. of Energy. 1990.