Herbert-Caesari, Edgar F, Vocal truth : some of the things I teach / E. Herbert-Caesari. - London : R. Hale ; (c)1978. New York : Crescendo, (c)1978. - 110 pages : portrait ; 21 cm. Subjects--Topical Terms: Singing--Instruction and study. LC Class. No.: MT820 / .V633 1978