APA引文

Ries, A. (1990). Bottom up marketing. Penguin (Plume).

芝加哥风格引文

Ries, Al. Bottom Up Marketing. New York: Penguin (Plume), 1990.

MLA引文

Ries, Al. Bottom Up Marketing. Penguin (Plume), 1990.

警告：这些引文格式不一定是100％准确.