Dr. Kristján Eldjárn ( ; 6 December 1916 -- 14 September 1982 ) was the third President of Iceland , from 1968 to 1980 .
Dr. Kristján Eldjárn ( December 6 , 1916 -- September 14 , 1982 ) was the 3rd president of Iceland . He was president from 1968 to 1980 .