APA (7th ed.) Citation

Harmon, A. (2017). The 9/11 Terrorist Attacks. 9/11 Terrorist Attacks (ELL), 1.

Chicago Style (17th ed.) Citation

Harmon, Angela. "The 9/11 Terrorist Attacks." 9/11 Terrorist Attacks (ELL) 2017: 1.

MLA (9th ed.) Citation

Harmon, Angela. "The 9/11 Terrorist Attacks." 9/11 Terrorist Attacks (ELL), 2017, p. 1.

Warning: These citations may not always be 100% accurate.