MacCrimmon, I. (1989). Rotation through Time: The Four-Sphere of Alternating Mass/Antimass. The nature of the fifth dimension, 325-350.
Παραπομπή σε μορφή Chicago (17η εκδ.)MacCrimmon, Ian. "Rotation Through Time: The Four-Sphere of Alternating Mass/Antimass." The Nature of the Fifth Dimension 1989: 325-350.
Παραπομπή σε μορφή MLA (9th εκδ.)MacCrimmon, Ian. "Rotation Through Time: The Four-Sphere of Alternating Mass/Antimass." The Nature of the Fifth Dimension, 1989, pp. 325-350.
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