Ligutom, G. P. A survey of the present social, economic and educational situation in the Island of Siquijor.
Chicago-referens (17:e uppl.)Ligutom, Gaudencio P. A Survey of the Present Social, Economic and Educational Situation in the Island of Siquijor.
MLA-referens (9:e uppl.)Ligutom, Gaudencio P. A Survey of the Present Social, Economic and Educational Situation in the Island of Siquijor.
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