Apel, Willi, 1893-1988. The Harvard brief dictionary of music / [electronic resource] / by Willi Apel and Ralph T. Daniel.. — New York : : Washington Square Press,, 1961.. — vi, 341 p. : : ill., music ; 19 cm. Nat. Bib. No.: GB61-19067 Subjects--Topical Terms: Music--Dictionaries. LC Class. No.: ML100 / .A63 1961 Dewey Class. No.: 780.3