5
-
Romania (Socialist Republic of)
United Kingdom of Great Britain and
Northern Ireland
S
SR
Rwandese Republic
S
San Marino (Republic of)
SR
Sao Tome and Principe
(Democratic
A
Republic of)
Senegal (Republic of)
Sierra Leone
SR
A
Singapore (Republic of)
SR
Somali Democratic Republic
SR
Sudan (Republic of the)
Sri Lanka (Democratic Socialist Republic of)
S
S
South Africa (Republic of)
Sweden
A
SR
Switzerland (Confederation of)
SR
Suriname (Republic of)
Swaziland (Kingdom of)
SR
SR
Tanzania (United Republic of)
S
Chad (Republic of)
A
Czechoslovak Socialist Republic
SR
Thailand
SR
Togolese Republic
SR
Tonga (Kingdom of)
S
Trinidad and Tobago
A
Tunisia
S
Turkey
SR
Union of Soviet Socialist Republics
SR
Uruguay (Eastern Republic of)
SR