Pinksterboer, Hugo Tipbook vocals : the singing voice : the complete guide / Hugo Pinksterboer. - 5th ed. - Milwaukee, Wis. : Hal Leonard, 2008. - 228 p. : ill. - Tipbook series . Includes bibliographical references and index ISBN: 9781423456223 Subjects--Topical Terms: Singing--Instruction and study LC Class. No.: MT 893 / P564T 2008