What's the best way to find someone besides the web?

I'm trying to find an old classmate of mine. I don't want to use websites for free people search because, I don't have an account or credit card to pay for who I'm looking for. Is there a people directory who live in Brockton MA? Where should I find the Brockton people directory book who live in Brockton MA? Because, the person I'm looking for lives in Brockton MA. Please let me know. Thank you.