@book{8701,
	author = {Trubeckoj, Nikolaj Sergeevič},
	title = {Principios de fonología /},
	publisher = {Cincel,},
	year = {1973.},
	address = {Madrid :},
	url = {https://drive.google.com/file/d/1SR_PQxsEdxcakypfx2f9-qB-rrhgXXwg/view?usp=sharing}
}