631.4947 Aca S Academia de Ciencias de la U.R.S.S. Soil-geographical zoning of the U.R.S.S. in relation to the agricultural usage of lands [tr. by A. Gourevitch] Jerusalem, Israel, Program for Scientiflc Translations, 1963. 480 p. diagrs., tablas. 24 cm. Bibliografía: p. 446-479 y al final de los capítulos. <a id= "rdfa" about="http://bnjm.sld.cu/cgi-bin/item.py?idficha=bcuhcgrlyfof0010330" property = "oa:link" href="http://www.worldcat.org/oclc/ 932844831 ">WorldCat</a>