TY  - RPRT
TI  - Catalog of available clear mylar templates used to determine latitude and longitude of sample localities at scales of 1:24,000, 1:62,500, 1:1,000,000 and 1:250,000 between the latitude of 25 degrees 30' and 49 degrees north or south latitude
AU  - W. L. Campbell
AU  - George VanTrump
PY  - 1981
DO  - 10.3133/ofr81746
UR  - https://pubs.usgs.gov/publication/ofr81746
ID  - ofr81746
ER  -