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.
Atenció: Aquestes cites poden no estar 100% correctes.