@book{2121,
	author = {Agresti, Alan},
	title = {Statistical methods for the social sciences /},
	publisher = {Pearson,},
	year = {2018},
	address = {United States :},
	edition = {Fifth edition.},
	url = {https://itmsp.museknowledge.com/UOH?qurl=https://libros-uoh.uoh.cl//ebook_2/statistical-methods-for-the-social-sciences/}
}