IF you're looking to purchase a copy, do a Google search for the book. Also contact the school. They may have old copies they're willing to sell.
If you're looking for specific information, the following organizations might have a copy and be willing to scan specific pages.
Bronx County Historical Society, http://bronxhistoricalsociety.org/library-archives/
DeWitt Wallace Periodical Room, www.nypl.org/locations/divisions/periodicals-room