Cita APA (7th ed.)

Barnea, J. (1975). The energy crisis and the future. United Nations Institute for Training and Research.

Cita Chicago (17th ed.)

Barnea, Joseph. The Energy Crisis and the Future. New York: United Nations Institute for Training and Research, 1975.

Cita MLA (9th ed.)

Barnea, Joseph. The Energy Crisis and the Future. United Nations Institute for Training and Research, 1975.