@book{1732,
	author = {Hughes, John and Stephenson, Helen},
	title = {Life: pre-intermediate},
	publisher = {Cengage Learning; National Geographic Learning,},
	year = {2013},
	address = {Hampshire :},
	url = {https://itmsp.museknowledge.com/UOH?qurl=https://libros-uoh.uoh.cl/ESCUELADEEDUCACION/PEDAGOGIAINGLES/Life%2520Pre-intermediate/}
}