Proceedings of the Amsterdam International Conference on Elementary Particles held at Amsterdam, The Netherlands, June 30 - July 6, 1971 editors: A. G. Tenner and M. J. G. Veltman. - Amsterdam North-Holland 1972. - 472 pages : illustration ; 27 cm. includes bibliographical references ISBN: 0720402417 Subjects--Topical Terms: Particles (Nuclear physics)--Congresses