Betts, R. R. (R. Russell) : Nuclear structure and heavy-ion reaction dynamics 1990 : proceedings of the Workshop on the Interface between Nuclear Structure and Heavy-Ion Reaction Dynamics, held at the University of Notre Dame, Indiana, USA, 24-26 May 1990 / edited by R.R. Betts and J.J. Kolata.
Betts, Thaddeus, 1789-1840. : In Senate of the United States. January 21, 1840. Ordered to be printed. Mr. Betts submitted the following report: The Committee of Claims, to which was referred the petition of John Burke, have had the same under consideration, and respectfully report... [electronic resource]
Betts, Wayne : Through deaf eyes / PBS ; A production of WETA Washington, D.C. & Florentine Films/Hott Productions, Inc. in association with Gallaudet University ; executive producers, Karen Kenton [and] Dalton Delan ; a film by Lawrence Hott and Diane Garey ; written by Ken Chowder.
Betty, Louis, : Without God : Michel Houellebecq and materialist horror / Louis Betty.
Betty Morgan May Memorial Fund. : Fifth International Colloquium on ancient mosaics : held at Bath, England, on September 5-12, 1987 / under the aegis of L'Association Internationale pour l'ʹEtude de la Mosaïque Antique and organized by The Association for the Study and Preservation of Roman Mosaics ; edited by Peter Johnson, Roger Ling and David J. Smith.