Clark, Leonard H. <br/><br/>
The American secondary school curriculum / 
Leonard H. Clark, Raymond L. Klein, John B. Burks. 
 - 2nd ed. 
 - New York :  Macmillan,  c1972. 
 - xv, 607 p. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>High schools--Curricula