High Energy Astronomy Observatory 3
[ar] مرصد الفلك العالي الطاقة 3
[de] High Energy Astronomy Observatory 3
[es] HEAO-3
[fr] HEAO-3
[gl] High Energy Astronomy Observatory 3
[he] HEAO-3
[id] High Energy Astronomy Observatory 3
[ja] HEAO-3
[pt] High Energy Astronomy Observatory 3
[ru] HEAO-3