TY  - RPRT
TI  - Topographic map of the Nankoweap-Kwagunt area, Grand Canyon, Arizona
AU  - Ivo Lucchitta
PY  - 1995
DO  - 10.3133/ofr95529
UR  - https://pubs.usgs.gov/publication/ofr95529
ID  - ofr95529
ER  -