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Books about Bonawitz:
Book of Bonawitz and Bonewitz : a geneology by Oby J. Bonawit (1970)
Book of Bonawitz and Bonewitz by Oby Bonawit (1968)
Irma. Opera in three acts, written and composed by J. H. Bonawitz. Op. 49. The English version by S. Dunn by Johann Heinrich Bonawitz (1885)