Sharma, D. (2011). Distance education and student support services. Omega Publication.
芝加哥风格引文Sharma, Darshana. Distance Education and Student Support Services. New Delhi: Omega Publication, 2011.
MLA引文Sharma, Darshana. Distance Education and Student Support Services. Omega Publication, 2011.
警告：这些引文格式不一定是100％准确.