Cartographic 3.3F1

Revise examples to read:

Scale 1:3,000,00 at 45º N ; polar stereographic projection (W 140º-W 52º/N 78º-N 41º). – First edition (1976)-

Scale 1:3,000,00 at 45º N ; polar stereographic projection (W 140º-W 52º/N 78º-N 41º). – First edition (1976)-third edition (1978)

Scales differ. – February 28-March 6, 1983-November 12-18, 1984.