Zuluaga, A. L. H. (2013). Effects of green tourism on the occupancy level of the Little Surfmaid Hotel in San Juan, La Union. University of the Philippines, Asia Institute of Tourism.
Čikaški stil citiranja (17. izdanje)Zuluaga, Alexandra Louise H. Effects of Green Tourism on the Occupancy Level of the Little Surfmaid Hotel in San Juan, La Union. Quezon City: University of the Philippines, Asia Institute of Tourism, 2013.
MLA način citiranja (9. izdanje)Zuluaga, Alexandra Louise H. Effects of Green Tourism on the Occupancy Level of the Little Surfmaid Hotel in San Juan, La Union. University of the Philippines, Asia Institute of Tourism, 2013.
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