in reference to something
with reference to something

Offer to provide them with a future reference of your own, if needed.

He has written a number of books with their references below.

And now here he is, three decades later, with a historical reference for everything.

His work is filled with references to life in the sea.

He finally emerged with a smile and a reference of his own.

Make sure you see samples of their work and speak with references.

The music, with its constant reference to community, was a form of political expression.

He returned home with a good reference, but found that his father had died in the meantime.

I would like to end with a reference to the agricultural sector.

The novel is shot through with references to American pop culture as well.