Spanish Relativity Meeting Valladolid, Spain, ebrary, Inc, & Pascual Sánchez, J. F. (2001). Proceedings of the XXIII Spanish Relativity Meeting on Reference Frames and Gravitomagnetism: Valladolid, Spain, 6-9 September 2000. World Scientific.
Παραπομπή σε μορφή Chicago (17η εκδ.)Spanish Relativity Meeting Valladolid, Spain, Inc ebrary, και J. F. Pascual Sánchez. Proceedings of the XXIII Spanish Relativity Meeting on Reference Frames and Gravitomagnetism: Valladolid, Spain, 6-9 September 2000. Singapore ; River Edge, N.J.: World Scientific, 2001.
Παραπομπή σε μορφή MLA (9th εκδ.)Spanish Relativity Meeting Valladolid, Spain, et al. Proceedings of the XXIII Spanish Relativity Meeting on Reference Frames and Gravitomagnetism: Valladolid, Spain, 6-9 September 2000. World Scientific, 2001.