APA (7th ed.) Citation

Montessori, M., & Orem, R. C. (1966). A Montessori handbook: Dr. Montessori's own handbook. Putnam.

Chicago Style (17th ed.) Citation

Montessori, Maria, and Reginald Calvert Orem. A Montessori Handbook: Dr. Montessori's Own Handbook. New York: Putnam, 1966.

MLA (9th ed.) Citation

Montessori, Maria, and Reginald Calvert Orem. A Montessori Handbook: Dr. Montessori's Own Handbook. Putnam, 1966.