@book{209,
	author = {Tobón Tobón, Sergio},
	title = {Secuencias didacticas:},
	publisher = {Pearson,},
	year = {2010.},
	address = {México :},
	url = {https://isae.metabiblioteca.org/cgi-bin/koha/opac-retrieve-file.pl?id=3cd0f3e180a99cc2207a0bffac8f5bb9}
}