Ryburn, W M <br/><br/>
Principles of teaching / 
by W M, Ryburn 
 - London :   Oxford university press,  1994. 
 - 244p. : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teaching
<br/><br/><label>Dewey Class. No.: </label>371.1020  / RYB.P