TY  - RPRT
TI  - User’s guide for MapMark4GUI—A graphical user interface for the MapMark4 R package
AU  - Jason L. Shapiro
PY  - 2018
DO  - 10.3133/tm7c18
UR  - https://pubs.usgs.gov/publication/tm7C18
ID  - tm7C18
ER  -