MLA

Geological Survey (U.S.). Wyoming, Cloud Peak quadrangle : land classification and density of standing timber / U.S. Geological Survey ; E.M. Douglas, geographer in charge ; triangulation by T.M. Bannon ; topography by H.S. Wallace and F.E. Matthes ; Henry Gannett, geographer in c. BRBL_00586. [1900].. https://collections.library.yale.edu/catalog/15818393.

APA, 6th edition

Geological Survey (U.S.). (["BRBL_00586"])([1900].)[Wyoming, Cloud Peak quadrangle : land classification and density of standing timber / U.S. Geological Survey ; E.M. Douglas, geographer in charge ; triangulation by T.M. Bannon ; topography by H.S. Wallace and F.E. Matthes ; Henry Gannett, geographer in c]. https://collections.library.yale.edu/catalog/15818393.