[R-sig-Geo] CRS format

[adeela uaf]

Hi,
I want to project my data on a map. The data were taken from a town of
Faisalabad city in Pakistan. But I don't know how to place an 'epsg' value
for that. As for meuse data set the codes are:

data(meuse)
>coordinates(meuse)<-~x+y # convert to SPDF
>proj4string(meuse) <- CRS('+init=epsg:28992')
For my dataset
coordinates(mt)<-~XCORD+YCORD
how can I find the epsg code.
Regards,
Adeela
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