TY  - RPRT
TI  - Rate of recession of Niagara falls, accompanied by a report on the survey of the crest
AU  - Grove Karl Gilbert
AU  - William Carvel Hall
PY  - 1907
DO  - 10.3133/b306
UR  - https://pubs.usgs.gov/publication/b306
ID  - b306
ER  -