There are a number of resources on this topic. In the catalog, use Boston and subway as your keyword search. Here is a brief list of catalog search results:
* WENTWORTH Clipping File titled MBTA File
* Beneath the Streets of Boston: Building America's First Subway
* Change at Park Street Under: The Story of Boston's Subways [by] Brian J. Cudahy
* Tremont Street Subway : A Century of Public Service / by Bradley H. Clarke and O.R. Cummings.
For further information you could contact the Library at the Dept. of Transportation. The link is below.
Also, you might search the Boston Public Library's catalog. As a student you are eligible for a BPL Library card. You can begin to search our catalog in the Helpful Tools to the right of this answer. A link to the BPL catalog and a link for information on registering for a BPL e-card is listed below.