Velasco, G. Z., & Valte, M. R. (2006). Trailblazing: The quest for energy self-reliance. Anvil.
Chicagoスタイル(17版)引用形式Velasco, Geronimo Z., , Maricris R. Valte. Trailblazing: The Quest for Energy Self-reliance. Pasig City: Anvil, 2006.
MLA(9版)引用形式Velasco, Geronimo Z., , Maricris R. Valte. Trailblazing: The Quest for Energy Self-reliance. Anvil, 2006.
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