MLA

Survey, Louisiana Geological. Topographic Map of a Portion of Calcasieu & Acadia Parishes : Townships 9 & 10 S, Ranges 1 2 & 3 W / State Geological Survey of Louisiana. State Geological Survey of Louisiana?, 1907. https://collections.library.yale.edu/catalog/15811435.

APA, 6th edition

Survey, L. G. (1907). Topographic map of a portion of Calcasieu & Acadia parishes : townships 9 & 10 S, ranges 1 2 & 3 W / State Geological Survey of Louisiana. [Maps]. State Geological Survey of Louisiana?, https://collections.library.yale.edu/catalog/15811435.