Carmichael, Ian Stuart Edward (1962). Volcanic geology of Thingmuli, Eastern Iceland (PhD thesis). Imperial College London. hdl:10044/1/13654. EThOSuk.bl.ethos.602161.
Carmichael, Ian Stuart Edward (1962). Volcanic geology of Thingmuli, Eastern Iceland (PhD thesis). Imperial College London. hdl:10044/1/13654. EThOSuk.bl.ethos.602161.