APA (7th ed.) Citation

Engen, R. K. (1981). Kate Greenaway, a biography. Schocken Books.

Chicago Style (17th ed.) Citation

Engen, Rodney K. Kate Greenaway, a Biography. New York: Schocken Books, 1981.

MLA (9th ed.) Citation

Engen, Rodney K. Kate Greenaway, a Biography. Schocken Books, 1981.