Allgood, Mary Brown . <br/><br/>
Demonstration Techniques /  Textual Documents 
Mary Brown Allgood. 
 - 1st ed. / 
 - New Delhi :  Prentice-Hall of India(Pvt Ltd) ,  1959. 
 - 142p. ;  32 cm.. 
<br/><br/><label>Subjects--Index Terms: </label>G-General Studies 
<br/><br/><label>Dewey Class. No.: </label>001  / Al 51 De