Vasquez, V. N., & Villareal, C. R. (2015). Estimating visitor expenditures from Aurora Surfing Cup 2015. UP Asian Institute of Tourism.
Chicago-viite (17. p.)Vasquez, Veronica Novio, ja Camille Ramirez Villareal. Estimating Visitor Expenditures from Aurora Surfing Cup 2015. Quezon City: UP Asian Institute of Tourism, 2015.
MLA-viite (9. p.)Vasquez, Veronica Novio, ja Camille Ramirez Villareal. Estimating Visitor Expenditures from Aurora Surfing Cup 2015. UP Asian Institute of Tourism, 2015.
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