The lower Merrimack River Valley : an inventory of historic engineering and industrial sites / directed and edited by Peter M. Molloy ; sponsored by Merrimack Valley Textile Museum, North Andover, Massachusetts, and Historic American Engineering Record, National Park Service, Washington, D.C.
The lower Merrimack River Valley : an inventory of historic engineering and industrial sites / directed and edited by Peter M. Molloy ; sponsored by Merrimack Valley Textile Museum, North Andover, Massachusetts, and Historic American Engineering Record, National Park Service, Washington, D.C.