Source: /cirosantilli/discovery-of-the-elements-by-mary-elvira-weeks
= Discovery Of The Elements by Mary Elvira Weeks
6th edition (1956) on the <Internet Archive>: https://archive.org/details/discoveryoftheel002045mbp
= Discovery Of The Elements by Mary Elvira Weeks
6th edition (1956) on the <Internet Archive>: https://archive.org/details/discoveryoftheel002045mbp