Cita APA (7th ed.)

Montessori, M., & Buckenmeyer, R. G. (1997). The California lectures of Maria Montessori: Collected speeches and writings. Clio Press.

Cita Chicago (17th ed.)

Montessori, Maria, i Robert G. Buckenmeyer. The California Lectures of Maria Montessori: Collected Speeches and Writings. Oxford, Eng: Clio Press, 1997.

Cita MLA (9th ed.)

Montessori, Maria, i Robert G. Buckenmeyer. The California Lectures of Maria Montessori: Collected Speeches and Writings. Clio Press, 1997.