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.
芝加哥风格引文Co, Ira Keziah D., 与 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引文Co, Ira Keziah D., 与 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.
警告：这些引文格式不一定是100％准确.