Topographic reconnaissance map of Upper Tanana River Valley region, Alaska / U.S. Geological Survey; Alfred H. Brooks in charge of division; Control and topography by D.C. Witherspoon and J.W. Bagley; Upper Tanana River from boat traverses by W.J. Peters.
MLA
Geological Survey (U.S.). Topographic reconnaissance map of Upper Tanana River Valley region, Alaska / U.S. Geological Survey; Alfred H. Brooks in charge of division; Control and topography by D.C. Witherspoon and J.W. Bagley; Upper Tanana River from boat traverses by W.J. Peters.. BRBL_00634. 1922. https://collections.library.yale.edu/catalog/15821772.
APA, 6th edition
Geological Survey (U.S.). (["BRBL_00634"])(1922)[Topographic reconnaissance map of Upper Tanana River Valley region, Alaska / U.S. Geological Survey; Alfred H. Brooks in charge of division; Control and topography by D.C. Witherspoon and J.W. Bagley; Upper Tanana River from boat traverses by W.J. Peters.]. https://collections.library.yale.edu/catalog/15821772.