Elwell, F. R.
The sounds we hear / F. R. Elwell. - London : Methuen, 1962. - 73 p. : ill. ; 20 cm. - The life and science series. .
300 300
Sound and vibrations.
534 / E87s
The sounds we hear / F. R. Elwell. - London : Methuen, 1962. - 73 p. : ill. ; 20 cm. - The life and science series. .
300 300
Sound and vibrations.
534 / E87s