APA引文

Gupta, S. (2020). Digital Marketing (2nd.). McgrawHill.

芝加哥风格引文

Gupta, Seema. Digital Marketing. 2nd. Chennai: McgrawHill, 2020.

MLA引文

Gupta, Seema. Digital Marketing. 2nd. McgrawHill, 2020.

警告：这些引文格式不一定是100％准确.