H
?
1970s languages
↑
High Cold War
↑
Fourth generation
↑
Explore languages for 1973 and Experimental and other
CHIEF
⊕
1973
↓
↑
⊕
Experimental and other
⊕
Netherlands
PLCV
⊕
1973
↓
↑
⊕
Experimental and other
⊕
United States
PSL/II
⊕
1973
↓
↑
⊕
Experimental and other
⊕
United States
Problem Statement Language/version 2