Music and Musicians, Essays and Criticisms, Tr., Ed. and Annotated by F.R. RitterRobert Alexander Schumann · First published 1877 · Latest edition 2015Open the Tome
Genealogical extracts from the Gary R. Ritter Funeral Home records, 1908-1941Norman J. Meinert · First published 2000Open the Tome
Reconnaissance of sediment transport and channel morphology in the Lower Río Bermejo basin, ArgentinaJohn R. Ritter · First published 1977Open the Tome
Ueber die Reflexion des Lichtes an parallel zur optischen Achse geschliffenem QuarzR. Ritter · First published 1888Open the Tome
