Siringan, F. P. (1997). Mechanism of formation of the sand dunes along the west coast of Ilocos Norte. National Institute of Geological Science.
Citação do estilo Chicago (17ª ed.)Siringan, Fernando P. Mechanism of Formation of the Sand Dunes Along the West Coast of Ilocos Norte. Philippines: National Institute of Geological Science, 1997.
Citação MLA (9ª ed.)Siringan, Fernando P. Mechanism of Formation of the Sand Dunes Along the West Coast of Ilocos Norte. National Institute of Geological Science, 1997.
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