APA (7e ed.) Bronvermelding

Co, I. K. D., & Tamayo, J. P. D. (2012). Application of the importance-performance model in determining male and female tour guides service quality. UP Asian Institute of Tourism.

Chicago (17e ed.) Bronvermelding

Co, Ira Keziah D., en Joyce Patricia D. Tamayo. Application of the Importance-performance Model in Determining Male and Female Tour Guides Service Quality. Quezon City: UP Asian Institute of Tourism, 2012.

MLA (9e ed.) Bronvermelding

Co, Ira Keziah D., en Joyce Patricia D. Tamayo. Application of the Importance-performance Model in Determining Male and Female Tour Guides Service Quality. UP Asian Institute of Tourism, 2012.