De Boer, Cecil  <br/><br/>
The if's and ought's of ethics. A preface to moral philosophy. /  
Cecil De Boer  
 - 1 ed. 
 - Grand Rapids :   Eerdmans,   1936 
 - xv, 379 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Etica
<br/><br/><label>Dewey Class. No.: </label>170 D34