Velasco, G. Z., & Valte, M. R. (2006). Trailblazing: The quest for energy self-reliance. Published and exclusively distributed by Anvil.
Cita Chicago (17th ed.)Velasco, Geronimo Z., i Maricris R. Valte. Trailblazing: The Quest for Energy Self-reliance. Manila: Published and exclusively distributed by Anvil, 2006.
Cita MLA (9th ed.)Velasco, Geronimo Z., i Maricris R. Valte. Trailblazing: The Quest for Energy Self-reliance. Published and exclusively distributed by Anvil, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.