631.8 Bea S4 <a id="rdfa" resource="" property="dc:creator" href="http://viaf.org/viaf/11328158" target="_new">Bear, Firman Edward, 1884-</a> Soils and fertilizers. 4th. ed. New xiii, 420 p . ilus ., mapas , tablas 24cm Bibliografia al final de los capítulos <a id= "rdfa" about="http://bnjm.sld.cu/cgi-bin/item.py?idficha=bcuhcgrlyfof0100024" property = "oa:link" href="http://www.worldcat.org/oclc/854578749">WorldCat</a>