Cita APA (7th ed.)

Lillard, P. P. (1972). Montessori, a modern approach. Schocken Books.

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

Lillard, Paula Polk. Montessori, a Modern Approach. Schocken Books, 1972.