Dufourcq, Norbert, 1904-1990 (Nombre personal)

His Esquisse d'une histoire de l'orgue en France, 1935.

Franck, C. Pie€ces inedites de Cesar Franck, c1973: t.p. (N. Dufourcq)

Norbert Dufourcq (1904-1990), 1993: p. 7 (b. 9-21-04, Saint-Jean-de-Braye, Loiret) p. 13 (d. 12-19-90, Paris)

New Grove dict. of mus. WWW site, May 12, 2006: French musicologist and organist