Chemical age 

 - London :  Morgan Grampion,  1917- 
<br/><br/> UKM: v.110-122 (1975-1981)  Lihat juga supplement: chemical age surveys. Mulai 1982 ditukar kepada manufacturing chemist and acrosat news 
<br/><br/><label>ISSN: </label>0009-2312 
 = Chemical age