Whitlock, Weldon, Facets of the singer's art. [print] - Champaign, Illinois, Pro Musica Press (c)1967. - ii, 128 pages 24 cm. - Twentieth century masterworks on singing ; v.1 . LCCN: 68002814 /MN Subjects--Topical Terms: Singing--Instruction and study. LC Class. No.: MT820.W613.F334 1967