APA (7th ed.) Citation

Thong, R., & Parra, J. (2013). Round is a tortilla: A book of shapes. Chronicle Books.

Chicago Style (17th ed.) Citation

Thong, Roseanne, and John Parra. Round Is a Tortilla: A Book of Shapes. San Francisco: Chronicle Books, 2013.

MLA (8th ed.) Citation

Thong, Roseanne, and John Parra. Round Is a Tortilla: A Book of Shapes. Chronicle Books, 2013.

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