Introduccion a los recursos mundiales

by Zimmermann, Erich Walter n. 1888, Zimmermann, Erich Walter n. 1888
Published 1967

World resources and industries : a functional appraisal of the availability of agricultural and industrial materials /

by Zimmermann, Erich Walter n. 1888, Zimmermann, Erich Walter n. 1888
Published 1951

Recursos e industrias del mundo

by Zimmermann, Erich Walter n. 1888, Zimmermann, Erich Walter n. 1888
Published 1957

La Resistencia alemana contra Hitler : el 20 de julio de 1944. /

by Zimmermann, Erich Walter n. 1888
Published 1961