APA (7th ed.) Citation

Keller, H. (1999). Jacob's tree (1. ed.). Greenwillow Books.

Chicago Style (17th ed.) Citation

Keller, Holly. Jacob's Tree. 1. ed. New York, NY: Greenwillow Books, 1999.

MLA (9th ed.) Citation

Keller, Holly. Jacob's Tree. 1. ed. Greenwillow Books, 1999.