https://catalogobiblioteca.ingemmet.gob.pe/cgi-bin/koha/opac-search.pl?idx=an%2Cphr&q=42&limit=su-geo%3AESTADOS%20UNIDOS&limit=au%3ASinger%2C%20Donald%20A.&format=rss2 Search results for 'an,phr: 42' with limit(s): 'su-geo:ESTADOS UNIDOS au:Singer, Donald A.' at Biblioteca - Ingemmet 0 20