Health problems in connection with radiation from radioactive matter in fertilizers, soils and rocks /
Låg, Jul.
International Society of Soil Science.Soils and Geomedicine.
Norske videnskaps-akademi i Oslo.
Oslo : Norwegian University Press,
1988.
International symposium arranged by the working group Soils and Geomedicine of the International Society of Soil Science  and the Norwegian Academy of Science and Letters, 26-27 May 1988.
At head of title page: The Norwegian Academy of Science and Letters.
Radioactive pollution of soils
Radiation