Behnke, Emil, Mrs, 1836-1920
The Mechanism of the Human Voice [recurso electrónico] / Emil, Behnke - Project Gutenberg, 2010 - Project Gutenberg 30889 .
Public domain in the USA.
Text
Voice Singing -- Instruction and study
MT
The Mechanism of the Human Voice [recurso electrónico] / Emil, Behnke - Project Gutenberg, 2010 - Project Gutenberg 30889 .
Public domain in the USA.
Text
Voice Singing -- Instruction and study
MT