C80 british isles: 2021
Auteur :
Imray
Éditeur :
Imray, Laurie, Norie & Wilson Ltd
ISBN :
9781786792501
Date de publication :
29 janv. 2021
Dimensions :
78,7 x 111,8 cm
Poids :
24 g
Langue :
Anglais
Pays d'origine :
Grande Bretagne
On this edition the magnetic variation curves have been updated with 2020 data. Under new royalty terms, the DGA (Danish Geodata Agency) have made it unviable to reproduce their copyrighted data. All DGA data has been removed from this chart. There has been general updating throughout.