Hopkin, Anthony G. <br/><br/>
Seeking and tapping new resources for education: a welsh case study / 
Anthony G. Hopkin. 
 - Reino Unido :  Universsity of Wales College of Cardiff,  1990. 
 - 8 p. 
 - ED-90/CPA.401/DP.4/9 .
<br/><br/><label>No. de Clasificación Universal Decimal: </label>37 (410) =20 HOP.