Rolls-Royce seeks train conversions to hybrid-electric. IN Shipping Bulletin. Manila Bulletin.
Cita Chicago (17th ed.)"Rolls-Royce Seeks Train Conversions to Hybrid-electric. IN Shipping Bulletin." Manila Bulletin .
Cita MLA (9th ed.)"Rolls-Royce Seeks Train Conversions to Hybrid-electric. IN Shipping Bulletin." Manila Bulletin, .
Atenció: Aquestes cites poden no estar 100% correctes.