JOURNAL OF THE INTERNATIONAL FEDERATION OF AIR TRAFFIC CONTROLLERS' ASSOCIATIONS
3/83 BERN. SWITZERLAND
3RD QUARTER 1 983
VOLUME 22
SFrs 5.-
JOURNAL OF THE INTERNATIONAL FEDERATION OF AIR TRAFFIC CONTROLLERS' ASSOCIATIONS
3/83 BERN. SWITZERLAND
3RD QUARTER 1 983
VOLUME 22
SFrs 5.-