Library of Congress. Copyright Office, U.S. Copyright Renewals, 1973 July - December
“ Music through the ages; a narrative for student and layman. By Marion Bauer & Ethel R. Peyser. © on 2 new chapters & revisions; 25Jan46; A958. Harrison Potter & Margaret Potter (E of Marion Bauer) & Ralph K. Jacobs, Jr. (E of Ethel R. Peyser) ”
