Basic principles of curriculum and instruction 
Ralph W. Tyler. 
 - Chicago  London  University of Chicago Press  1949. 
 - 128 p. 
<br/><br/><label>LCCN: </label>a  51003967 //r84 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Curricula.<br/>Education--Aims and objectives.