Singh, S. (1999). studies in tourism: Key issues for effective management. A P H.
芝加哥风格引文Singh, Sagar. Studies in Tourism: Key Issues for Effective Management. New Delhi: A P H, 1999.
MLA引文Singh, Sagar. Studies in Tourism: Key Issues for Effective Management. A P H, 1999.
警告：这些引文格式不一定是100％准确.