B. Madsen H. S. Western: Soil Survey Contracts arfd Quality Control. Monographs on soil survey. Oxford University Press, Oxford 1978. 284 s., 14x22 cm. £12.50. gt [Internet]. 1980 Jan. 1 [cited 2024 Sep. 27];80. Available from: https://tidsskrift.dk/geografisktidsskrift/article/view/45310