Ralston, Peter,  1949- <br/><br/>
The art of mastery :  principles of effective interaction : a scared planet books / 
Peter Ralston. 
 - Rochester, Vermont :  Park Street Press,  2023. 
 - 232 p. ;  22 cm. 
<br/><br/><label>ISBN: </label>9781644116432 9781644116449 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mastery learning
<br/><br/><label>Dewey Class. No.: </label>371.39