APA (7th ed.) Citation

Cooper, M. (2019). Martha: A Picture Story. Umbrella Entertainment.

Chicago Style (17th ed.) Citation

Cooper, Martha. Martha: A Picture Story. [Place of publication not identified]: Umbrella Entertainment, 2019.

MLA (8th ed.) Citation

Cooper, Martha. Martha: A Picture Story. Umbrella Entertainment, 2019.

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