MLA

Geological Survey (U.S.). Wyoming-South Dakota, Newcastle quadrangle : land classification and density of standing timber / U.S. Geological Survey ; E.M. Douglas, geographer in charge ; triangulation by Frank Tweedy and R.H. Chapman ; topography by W.H. Herron ; Henry Gannett, geo. BRBL_00586. [1901]. https://collections.library.yale.edu/catalog/15818395.

APA, 6th edition

Geological Survey (U.S.). (["BRBL_00586"])([1901])[Wyoming-South Dakota, Newcastle quadrangle : land classification and density of standing timber / U.S. Geological Survey ; E.M. Douglas, geographer in charge ; triangulation by Frank Tweedy and R.H. Chapman ; topography by W.H. Herron ; Henry Gannett, geo]. https://collections.library.yale.edu/catalog/15818395.