APA-viite (7. p.)
Orem, R. (1966). A Montessori handbook: Dr. Montessori's own handbook, with additional new material en current Montessori theory and practice.
Chicago-viite (17. p.)
Orem, R.C. A Montessori Handbook: Dr. Montessori's Own Handbook, with Additional New Material En Current Montessori Theory and Practice. 1966.
MLA-viite (9. p.)
Orem, R.C. A Montessori Handbook: Dr. Montessori's Own Handbook, with Additional New Material En Current Montessori Theory and Practice. 1966.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.