Newton, R. G.. <br/><br/>
Art and archaeology technical abstracts   ;   Vol. 10, no. 2 

 - Londres-ENK :   International Institute for Conservation,   1973. 
 - páginas 132-178 
 - Irregular 
 - Vol. 10, no. 2(1973) 
 - Art and archaeology technical abstracts   ;   Vol. 10, no. 2 .