APA引文

Spotts, M. (2019). Design of Machine Elements (1st.). PEARSON.

芝加哥风格引文

Spotts, M.F. Design of Machine Elements. 1st. NEW DELHI: PEARSON, 2019.

MLA引文

Spotts, M.F. Design of Machine Elements. 1st. PEARSON, 2019.

警告：这些引文格式不一定是100％准确.