APA-ийн эшлэл(7 дахь хэвлэлт)

Worley, P., & Levi, T. (2011). The if machine: Philosophical enquiry in the classroom. Continuum International Publishing.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Worley, Peter, ба Tamar Levi. The If Machine: Philosophical Enquiry in the Classroom. London, [England] ; New York, New York: Continuum International Publishing, 2011.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Worley, Peter, ба Tamar Levi. The If Machine: Philosophical Enquiry in the Classroom. Continuum International Publishing, 2011.