Christov, Ch. <br/><br/>
Present state and future of the planning and control of the higher education in Bulgaria / 
Ch. Christov. 
 - Sofia, Bulgaria :  Paris :  Ministry of Science and Higher Education;  UNESCO,  1990. 
 - 8 p. 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>378.014. 15 (497.2) =20 CHR.