Speech and voice : with X-rays of English, French, German, Italian, Spanish, soprano, tenor, and baritone subjects / by G. Oscar Russell.
- Russell, G. Oscar (George Oscar), 1890-1962.
- Date:
- 1931
Licence: In copyright
Credit: Speech and voice : with X-rays of English, French, German, Italian, Spanish, soprano, tenor, and baritone subjects / by G. Oscar Russell. Wellcome Collection. Source: Wellcome Collection.
