APA (7th ed.) Citation

Britain, K. (2019). 2020 calendar: Art inspired by Kristen Britain's Green rider. [publisher not identified].

Chicago Style (17th ed.) Citation

Britain, Kristen. 2020 Calendar: Art Inspired by Kristen Britain's Green Rider. [United States?]: [publisher not identified], 2019.

MLA (9th ed.) Citation

Britain, Kristen. 2020 Calendar: Art Inspired by Kristen Britain's Green Rider. [publisher not identified], 2019.