Cita APA (7a ed.)

(1999). Ruhr energy. The Architectural Review, 1999(1230), .

Cita Chicago Style (17a ed.)

"Ruhr Energy." The Architectural Review 1999(1230) (1999).

Cita MLA (9a ed.)

"Ruhr Energy." The Architectural Review, vol. 1999(1230), 1999.