Geologic reconnaissance map of headwater region of Gulkana and Susitna Rivers, Alaska / U.S. Geological Survey. Alfred H. Brooks, geologist in charge of division, topography and triangulation by D.C. Witherspoon, C.E. Giffin and J.W. Bagley.
MLA
Geological Survey (U.S.). Geologic reconnaissance map of headwater region of Gulkana and Susitna Rivers, Alaska / U.S. Geological Survey. Alfred H. Brooks, geologist in charge of division, topography and triangulation by D.C. Witherspoon, C.E. Giffin and J.W. Bagley.. BRBL_00632. 1912. https://collections.library.yale.edu/catalog/15821746.
APA, 6th edition
Geological Survey (U.S.). (["BRBL_00632"])(1912)[Geologic reconnaissance map of headwater region of Gulkana and Susitna Rivers, Alaska / U.S. Geological Survey. Alfred H. Brooks, geologist in charge of division, topography and triangulation by D.C. Witherspoon, C.E. Giffin and J.W. Bagley.]. https://collections.library.yale.edu/catalog/15821746.
