Aguiba, M. M. Biofuel firms to use Sorghum. Manila Bulletin.
Cita Chicago (17th ed.)Aguiba, Melody M. "Biofuel Firms to Use Sorghum." Manila Bulletin .
Cita MLA (9th ed.)Aguiba, Melody M. "Biofuel Firms to Use Sorghum." Manila Bulletin, .
Atenció: Aquestes cites poden no estar 100% correctes.