Παραπομπή σε μορφή APA (7η εκδ.)

Duff, M. J. B. (1999). The world in eleven dimensions: Supergravity, supermembranes and M-theory. Institute of Physics Publishing.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Duff, M. J. B. The World in Eleven Dimensions: Supergravity, Supermembranes and M-theory. Bristol: Institute of Physics Publishing, 1999.

Παραπομπή σε μορφή MLA (8th εκδ.)

Duff, M. J. B. The World in Eleven Dimensions: Supergravity, Supermembranes and M-theory. Institute of Physics Publishing, 1999.