Map of Alaska / compiled chiefly from maps of the U.S. Geological Survey ... Alfred H. Brooks, geologist in charge, Division of Alaskan Mineral Resources.
MLA
Geological Survey (U.S.). Map of Alaska / compiled chiefly from maps of the U.S. Geological Survey ... Alfred H. Brooks, geologist in charge, Division of Alaskan Mineral Resources.. BRBL_00630. 1909. https://collections.library.yale.edu/catalog/15821723.
APA, 6th edition
Geological Survey (U.S.). (["BRBL_00630"])(1909)[Map of Alaska / compiled chiefly from maps of the U.S. Geological Survey ... Alfred H. Brooks, geologist in charge, Division of Alaskan Mineral Resources.]. https://collections.library.yale.edu/catalog/15821723.
