TY  - RPRT
TI  - Stratified rocks of the Grand Canyon: Chapter B in The Colorado River region and John Wesley Powell (Professional Paper 669)
AU  - Edwin D. McKee
PY  - 1969
DO  - 10.3133/pp669b
UR  - https://pubs.usgs.gov/publication/pp669B
ID  - pp669B
ER  -