@book{48366,
	author = {Richards, Jack C. and Hull, Jonathan},
	title = {Interchange},
	publisher = {Cambridge University Press,},
	year = {1991.},
	series = {Teacher's manual},
	address = {Cambridge [u. a.] :},
	url = {https://firstsearch.oclc.org/WebZ/DECRead?standardNoType=1&standardNo=0521376823&sessionid=0&srcdbname=worldcat&key=477fd79a7facfa38b45fbe38311876d85ec6c3fe10315832a9efcbe415fd6d1b&ectype=MOREINFO}
}