APA (7th ed.) Citation

Hoban, T. (1986). Shapes, shapes, shapes. Greenwillow Books.

Chicago Style (17th ed.) Citation

Hoban, Tana. Shapes, Shapes, Shapes. New York: Greenwillow Books, 1986.

MLA (9th ed.) Citation

Hoban, Tana. Shapes, Shapes, Shapes. Greenwillow Books, 1986.