Não informado. (1976). RAILWAY ENGINEER. Mechanical Engineering Publications.
Cita Chicago Style (17a ed.)Não informado. RAILWAY ENGINEER. London: Mechanical Engineering Publications, 1976.
Cita MLA (8a ed.)Não informado. RAILWAY ENGINEER. Mechanical Engineering Publications, 1976.
Precaución: Estas citas no son 100% exactas.