Science technology man. 

 - Sofia :  Publishing house of the bulgarian academy of sciences,  1973. 
 - 316 p. ;  25 cm. 
<br/><br/>340  340 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophy.
<br/><br/><label>Dewey Class. No.: </label>102 / G157s