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NSTA Offshore Field Determinations (ED50)
Offshore field determinations -
NSTA Offshore Field Determinations (ETRS89)
Offshore field determinations -
NSTA Offshore Field Determinations (WGS84)
Offshore field determinations -
NSTA Onshore Field Determinations (WGS84)
Onshore field determinations -
NSTA Offshore Field Determinations (BNG)
Onshore field determinations