APA引文

Kumar, A. (1999). Learner performance in distance education. Commonwealth.

芝加哥风格引文

Kumar, Anil. Learner Performance in Distance Education. New Delhi: Commonwealth, 1999.

MLA引文

Kumar, Anil. Learner Performance in Distance Education. Commonwealth, 1999.

警告:这些引文格式不一定是100%准确.