APA (7th ed.) Citation

Nunn, M. (2019). When the ground is hard. G.P. Putnam's Sons Books for Young Readers.

Chicago Style (17th ed.) Citation

Nunn, Malla. When the Ground Is Hard. New York, NY: G.P. Putnam's Sons Books for Young Readers, 2019.

MLA (9th ed.) Citation

Nunn, Malla. When the Ground Is Hard. G.P. Putnam's Sons Books for Young Readers, 2019.

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