APA引文

Gupta,Seema. (2019). Digital Marketing (NA.). McGraw Hill Education.

芝加哥风格引文

Gupta,Seema. Digital Marketing. NA. New Delhi: McGraw Hill Education, 2019.

MLA引文

Gupta,Seema. Digital Marketing. NA. McGraw Hill Education, 2019.

警告：这些引文格式不一定是100％准确.