@book{29539,
	author = {Castro Santander, Alejandro, and Reta Bravo, Cristina,},
	title = {Bullying blando, bullying duro y ciberbullying :},
	publisher = {Homo Sapiens Ediciones,},
	year = {2014.},
	series = {Educación},
	address = {Argentina :},
	note = {Incluye índice.},
	url = {https://elibro.net/ereader/politecnicointernacional/177057}
}