The phrase "a reference to action" is correct and usable in written English.
You can use it when discussing something that points to or indicates a specific action or behavior.
Example: "In the context of the story, the phrase serves as a reference to action that drives the plot forward."
Alternatives: "an indication of action" or "a mention of action".
Over the last five years reference to action at a social and political level, and population level empowerment associated with conceptualisation of critical health literacy, have declined [ 5].
The Commission's position included a major reference to actions designed to support innovation and especially the so called Green Car initiative i.e. the development of the next generation "clean" cars of the future (electric cars).
"But if you use it to suggest some connection in Iraq, its misleading if you have nothing to do with the military, or if it doesn't have much independent trademark significance other than merely a reference to the action over there and it's not an independent brand name".
He called for "immediate action," not "pieces of paper or forms of words," a reference to I.R.A. actions permitting international monitors to inspect its secret arms dumps and vaguely phrased promises to put its weapons "beyond use".
When the same VICE associate learned the extent of the DJ's transgressions, he posted a reference to hacking actions on his own Facebook page.
"Papa Rescata DAPA y la Legalizacion que sea tu Bendicion!" It was a reference to DAPA — Deferred Action for Parents of Americans — one of President Obama's executive actions designed to shield from deportation millions of people living in the U.S. illegally.
The film opens up a shady chapter in Danish history, with reference to actions that may have been in breach of international conventions of war.
The final version made only a reference to unspecified further action if Syria fails to carry out the peace plan.
This year members of the National Union of Teachers (NUT), protesting at the shortage of teachers, chose the education secretary's speech to hold aloft placards declaring "We won't cover", a reference to suspended industrial action.
