Sonya Monosoff, Violin, and Louise Rood, Viola Entered from booking ledger and New York Times concert listing and review. "PROGRAMS THIS WEEK CONCERT AND OPERA." New York Times (1923-Current file), Apr 30 1961, p. 1. ProQuest. Web. 23 Oct. 2019. "PROGRAMS THIS WEEK CONCERT AND OPERA." New York Times (1923-Current file), Apr 30 1961, p. 1. ProQuest. Web. 23 Oct. 2019. "VIOLIN, VIOLA DUO OFFERS PROGRAM: Sonya Monosoff and Louise Rood Give a Recital." New York Times (1923-Current file), May 07 1961, p. 80. ProQuest. Web. 24 Oct. 2019. duo recital 1961-05-06T14:30:00