Reference Fields

I have a dynamic page with 80 schools. On the dynamic page, I want to capture alumni information, however, when the user submits the form in the dynamic page to my collection, I want to know what school the submission came from.

Additional Info- I have 2 collections, one for the schools and dynamic page and the other for the alumni form submission, I want to create a field on the form submission collection referencing the school name from the school collection.

How can i go about this? I want to be able to tell what page (representing a school) the form was submitted from.

Thanks fr the help