APA (7th ed.) Citation

Hewlett, S., & Schnaubelt, T. (2020). The Sponsor Effect (1st edition.). Ascent Audio.

Chicago Style (17th ed.) Citation

Hewlett, Sylvia, and Teri Schnaubelt. The Sponsor Effect. 1st edition. [Erscheinungsort nicht ermittelbar]: Ascent Audio, 2020.

MLA (9th ed.) Citation

Hewlett, Sylvia, and Teri Schnaubelt. The Sponsor Effect. 1st edition. Ascent Audio, 2020.