Good to note: Lists of repertoire are often featured in music-related journals & magazines. Search Music Index and IIMP using the subject "bibliography" to locate repertoire for a specific instrument or ensemble. Example: oboe AND bibliography
Haynes, Bruce. Music for Oboe, 1650-1800: A Bibliography. Music Library Ref ML128.O2 H55 1992
Snodgrass Gifford, Virginia. Music for Oboe, Oboe d'amore, and English Horn: A Bibliography of Materials at the Library of Congress. Music Library Ref ML128.O2 G5 1983
Baron, John H. Chamber Music: A Research and Information Guide. Mus Lib Ref ML128.C4 B37 2010
Lindeman, Stephan D. Concerto: A Research and Information Guide. Mus Lib Ref ML128.C84 L56 2006
Peters, Harry. The Literature of the Woodwind Quintet. Mus Lib Ref ML128.C4 P5
Scott, William. A Conductor's Repertory of Chamber Music : Compositions for Nine to Fifteen Solo Instruments. Mus Lib Ref ML128.C4 S37 1993
Secrist-Schmedes, Barbera. Wind Chamber Music : Winds with Piano and Woodwind Quintets : An Annotated Guide. Mus Lib Stacks ML128.C4 S43 1996