@book{49,
	author = {Hillier, Frederick S. and Lieberman, Gerald J.},
	title = {Introducción a la investigación de operaciones /},
	publisher = {McGraw-Hill  Educación,},
	year = {c2010.},
	address = {Mexico :},
	edition = {novena edicion },
	url = {https://isae.metabiblioteca.org/cgi-bin/koha/opac-retrieve-file.pl?id=af3de615a7a15513b2751a9208fee6f1}
}