APA引文

Yong, M. L. (1994). The changing tourist profile and its effect on the Singapore service industry.

Chicago Style (17th ed.) Citation

Yong, Ming Loong. The Changing Tourist Profile and Its Effect on the Singapore Service Industry. 1994.

MLA引文

Yong, Ming Loong. The Changing Tourist Profile and Its Effect on the Singapore Service Industry. 1994.

警告：这些引文格式不一定是100％准确.