WVSPS 2021 Convention PDH Quiz - NSRS Modernization - Replacing NAD83, NAVD88, and revamping SPCS83 by Jeff Jalbrzikowski |
WVSPS 2021 Convention PDH Quiz - NSRS Modernization - Replacing NAD83, NAVD88, and revamping SPCS83 by Jeff Jalbrzikowski |
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