@book{17110,
	author = {Adamson, H. D.},
	title = {Interlanguage variation in theoretical and pedagogical perspective},
	publisher = {Routledge,},
	year = {2009},
	address = {New York :},
	note = {Description based on print version record},
	url = {http://www.netlibrary.com.libraryumpsa.idm.oclc.org/urlapi.asp?action=summary&v=1&bookid=253846}
}