Watts, A. (1972). Cecil E. Watts : pioneer of direct disc recording / by Agnes Watts: Pioneer of direct disc recording. Clowes.
Chicago Edition CitationWatts, Agnes. Cecil E. Watts : Pioneer of Direct Disc Recording / by Agnes Watts: Pioneer of Direct Disc Recording. [Sunbury on Thames]: Clowes, 1972.
MLA Edition CitationWatts, Agnes. Cecil E. Watts : Pioneer of Direct Disc Recording / by Agnes Watts: Pioneer of Direct Disc Recording. Clowes, 1972.
Warning: These citations may not always be 100% accurate.