APA引文

Tyagi,B.K. (2010). First course in metric spaces. Foundations.

Chicago Edition Citation

Tyagi,B.K. First Course in Metric Spaces. Chennai: Foundations, 2010.

MLA引文

Tyagi,B.K. First Course in Metric Spaces. Foundations, 2010.

警告：这些引文格式不一定是100％准确.