Vasquez, V. N., & Villareal, C. R. (2015). Estimating visitor expenditures from Aurora Surfing Cup 2015. UP Asian Institute of Tourism.
Cita Chicago (17th ed.)Vasquez, Veronica Novio, i Camille Ramirez Villareal. Estimating Visitor Expenditures from Aurora Surfing Cup 2015. Quezon City: UP Asian Institute of Tourism, 2015.
Cita MLA (9th ed.)Vasquez, Veronica Novio, i Camille Ramirez Villareal. Estimating Visitor Expenditures from Aurora Surfing Cup 2015. UP Asian Institute of Tourism, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.