BELL, John F <br/><br/>
Science performance and uptake by 15-years-old pupils in Northern Ireland 

 - 93-102 
 - 1991 Vol. 33, no. 2 (mar.-may.) 
 = EDUCATIONAL RESEARCH 
<br/><br/><label>Encabezamiento--Término de Indización: </label>EDUCACION SECUNDARIA INGLATERRA INVESTIGACION CIENTIFICA IRLANDA DEL NORTE