https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3ACengage%20Learning%20and%20su-to%3AMEC%C3%83%C2%81NICA%20and%20au%3ASerway%2C%20Raymond%20A.%20and%20au%3AGarc%C3%83%C2%ADa%20Hern%C3%83%C2%A1ndez%2C%20Ana%20Elizabeth&format=rss2 Search results for 'Provider:Cengage Learning and su-to:MECÁNICA and au:Serway, Raymond A. and au:García Hernández, Ana Elizabeth' at Biblioteca UGB 0 20