Cite

Map of the Boston and Maine Railroad showing its relative position & connection with other Railroads. Prepared by order of the Committee of Investigation. Wm. Parrott, Engineer.

MLA

Map of the Boston and Maine Railroad Showing Its Relative Position & Connection with Other Railroads. Prepared by Order of the Committee of Investigation. Wm. Parrott, Engineer. W.C. Sharp's Lith., 1849. https://collections.library.yale.edu/catalog/15606975.

APA, 6th edition

Map of the Boston and Maine Railroad showing its relative position & connection with other Railroads. Prepared by order of the Committee of Investigation. Wm. Parrott, Engineer. (1849). [Maps]. W.C. Sharp's Lith., https://collections.library.yale.edu/catalog/15606975.