Cite

Map of railways in the New England states : engraved expressly for Snow's Pathfinder Railway Guide. 1863.

MLA

Geo. K. Snow & Hapgood (Firm). Map of railways in the New England states : engraved expressly for Snow's Pathfinder Railway Guide. 1863.. BRBL_00446A. [1863]. https://collections.library.yale.edu/catalog/15606979.

APA, 6th edition

Geo. K. Snow & Hapgood (Firm). (["BRBL_00446A"])([1863])[Map of railways in the New England states : engraved expressly for Snow's Pathfinder Railway Guide. 1863.]. https://collections.library.yale.edu/catalog/15606979.