697 Bed B <a id="rdfa" resource="" property="dc:creator" href="http://viaf.org/viaf/58934702" target="_new">Bedford, Thomas</a> Basic principles of ventilacion and heating 2a ed . London , H. k. Levis , 1964. xii, 438p ilus ., diagrs ., tablas . 23 cm '' Bibliography''. p. [404]-424 <a id= "rdfa" about="http://bnjm.sld.cu/cgi-bin/item.py?idficha=bcuhcgrlyfof0100177" property = "oa:link" href="http://www.worldcat.org/oclc/916240699">WorldCat</a>