APA (7th ed.) Citation

Lillard, P. P. (1972). Montessori: A modern approach. Schocken.

Chicago Style (17th ed.) Citation

Lillard, Paula Polk. Montessori: A Modern Approach. New York: Schocken, 1972.

MLA (9th ed.) Citation

Lillard, Paula Polk. Montessori: A Modern Approach. Schocken, 1972.