Kinkel, Johanna,  1810-1858 <br/><br/>
Acht Briefe an eine Freundin über Clavier-Unterricht  [electronic resource] / 
Johanna Kinkel 
 -  Project Gutenberg,  2010 
 - Project Gutenberg  31170 .
<br/><br/> Public domain in the USA. 
<br/><br/>Electronic text 
<br/><br/><label>Subjects--Index Terms: </label>Piano -- Instruction and study Music 
<br/><br/><label>LC Class. No.: </label>MT