The struggle for Wolfram in the Iberian Peninsula, June, 1942-June, 1944 : a study in political and economic geography in wartime / By John H. Kemler.
- Chicago : University of Chicago, Dept. of Geography, 1949.
vi, 151 p. : ill., maps. ; 24 cm.
- Research paper (University of Chicago. Department of Geography); no. 7.
University of Chicago. Department of Geography. Research paper no. 7