Chritophersen, Derman Guy <br/><br/>
On being a technologist / 
Derman Guy Chritophersen 
 - London :  SCM Press ,  1959 
 - 33 p. ;  19cm. 
 - Technics and purpose ;  5 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology and civilization
<br/><br/><label>Dewey Class. No.: </label>PS 215.06242 T43 no.5