Citazione Stile APA (7a Edizione)

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.

Citazione stile Chigago Style (17a edizione)

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.

Citatione MLA (9a ed.)

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.