Ruaya, J. (2011). Water sports: Tourism's most profitable niche. Philippines Free Press.
Chicago (17e ed.) BronvermeldingRuaya, Jun. "Water Sports: Tourism's Most Profitable Niche." Philippines Free Press 2011.
MLA (9e ed.) BronvermeldingRuaya, Jun. "Water Sports: Tourism's Most Profitable Niche." Philippines Free Press, 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.