https://catalogobiblioteca.ingemmet.gob.pe/cgi-bin/koha/opac-search.pl?q=ccl=an%3A21541%20and%20au%3AVargas%20Rodr%C3%83%C2%ADguez%2C%20Luis%20Enrique%20and%20au%3ADe%20la%20Cruz%20Poma%2C%20C%C3%83%C2%A9sar&format=rss2 Search results for 'an:21541 and au:Vargas Rodríguez, Luis Enrique and au:De la Cruz Poma, César' at Biblioteca - Ingemmet 0 20