Studies in the Mechanization of Norwegian Agriculture 1910-1960 with Particular Emphasis on Public Policies and Activities of Importers and Dealers
(1990)
Proceedings of the Conference on research needs and approaches to the use of agricultural chemicals from a public health viewpoint held at the University of California, Davis, October 1-3, 1964
(1965)
A symposium held at Liblice and Smolenice, 1 September-5 September 1961 under the auspices of UNESCO and of the National institutes of Health U. S. public Health Service
(1962)
