Sylvan Levin collection (MSS 40), MSS 40, Box: 01; Box: 02. Curtis Institute of Music Archives.
Sylvan Levin collection (MSS 40), MSS 40, Box: 01; Box: 02. Curtis Institute of Music Archives. https://curtisarchives.libraryhost.com/repositories/2/resources/94 Accessed May 05, 2024.
