Langdon, Danny G. <br/><br/>
The construct lesson plan  improving group instruction 
Danny G. Langdon. 
 - Englewood Cliffs, N.J.  Educational Technology Publications  c1978. 
 - ix, 80 p. 
 - The Instructional design library  v. 7 .
<br/><br/>Bibliography: p. 49-50. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>LCCN: </label>77025406  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lesson planning<br/>Home and school