APA引文

Gamma, E. (2020). Design Patterns (13th.). Pearson.

芝加哥风格引文

Gamma, Erich. Design Patterns. 13th. New Delhi: Pearson, 2020.

MLA引文

Gamma, Erich. Design Patterns. 13th. Pearson, 2020.

警告：这些引文格式不一定是100％准确.