Shafer, Carl. <br/><br/>
Excellence in teaching with the seven laws :  a contemporary abridgment of Gregory's seven laws of teaching / 
Carl Shafer. 
 - Grand Rapids :  Baker,  c1985. 
 - 96 p. 
<br/><br/><label>ISBN: </label>0801082617 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teaching.
<br/><br/><label>LC Class. No.: </label>LB 1025  / .G83