Managbanag, S. G. P. (1998). The quest for more energy to boost economic recovery: Alternative sources of energy. Philippine Development.
Citace podle Chicago (17th ed.)Managbanag, Sharon Grace P. "The Quest for More Energy to Boost Economic Recovery: Alternative Sources of Energy." Philippine Development 1998.
Citace podle MLA (9th ed.)Managbanag, Sharon Grace P. "The Quest for More Energy to Boost Economic Recovery: Alternative Sources of Energy." Philippine Development, 1998.
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