Tài liệu tham khảo WikiPedia: Edward_Heath //nla.gov.au/anbd.aut-an36191992 http://aleph.nkp.cz/F/?func=find-c&local_base=aut&... http://catalogo.bne.es/uhtbin/authoritybrowse.cgi?... http://catalogue.bnf.fr/ark:/12148/cb119070832 http://data.bnf.fr/ark:/12148/cb119070832 http://www.idref.fr/033536244 http://id.loc.gov/authorities/names/n50025636 http://d-nb.info/gnd/118709348 http://ci.nii.ac.jp/author/DA04899141?l=en http://id.ndl.go.jp/auth/ndlna/00442822
