The 5th Latin-American Clinical Biochemistry Congress, San Salvador 1979
Viser nå: El Salvador - Postfrimerker - 1979 - The 5th Latin-American Clinical Biochemistry Congress, San Salvador - 1 frimerker.
1979
The 5th Latin-American Clinical Biochemistry Congress, San Salvador
1. November VM: Ingen Perforering: 14½ x 14
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