{{CIAAW2021}} adds a full reference (<ref>...</ref>
) for the standard atomic weight (Ar°(E)) of chemical elements as defined by IUPAC (commission: CIAAW). The source citation is:
This template has options to use by refname, and as plain source (no <ref> tag). See #Options.
Some text.{{CIAAW2021}}
→ Some text.[1]|1=plain
(no <ref>
tag)|1=name, refname
<ref "CIAAW2021" />
, for a second usage))|ref=harv