Chemical Abstracts ; vol.54, Author and numerical patent indexes, 1960
Amerkan Chemical society
Chemical Abstracts ; vol.54, Author and numerical patent indexes, 1960 - Columbus : The ohio state uni versity 1961 - (2), 1380+
540.5
Chemical Abstracts ; vol.54, Author and numerical patent indexes, 1960 - Columbus : The ohio state uni versity 1961 - (2), 1380+
540.5