2014DIN EN ISO 24801-1:2014-08 Recreational diving services - Requirements for the training of recreational scuba divers - Part 1: Level 1 - Supervised diver (ISO 24801-1:2014); German version EN ISO 24801-1:2014
2014DIN EN ISO 24801-1:2014 Recreational diving services - Requirements for the training of recreational scuba divers - Part 1: Level 1 - Supervised diver (ISO 24801-1:2014); German version EN ISO 24801-1:2014
1970DIN EN ISO 24801-1 E:2012-10 Recreational Diving Services Recreational Scuba Diver Training Requirements Part 1: Level 1 Supervised Diver (Draft)