Παραπομπή σε μορφή APA (7η εκδ.)

Gray, J. (2007). Worlds Out of Nothing: A Course in the History of Geometry in the 19th Century. Springer London.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gray, Jeremy. Worlds Out of Nothing: A Course in the History of Geometry in the 19th Century. London: Springer London, 2007.

Παραπομπή σε μορφή MLA (8th εκδ.)

Gray, Jeremy. Worlds Out of Nothing: A Course in the History of Geometry in the 19th Century. Springer London, 2007.