APA引文

Digital Education Productions. (2003). EASY: Greetings & introductions (Ver. 2.1.). EASY, the ESL Series.

Chicago Style (17th ed.) Citation

Digital Education Productions. EASY: Greetings & Introductions. Ver. 2.1. Half Moon Bay, CA: EASY, the ESL Series, 2003.

MLA引文

Digital Education Productions. EASY: Greetings & Introductions. Ver. 2.1. EASY, the ESL Series, 2003.

警告：這些引文格式不一定是100％准確.