@book{18021,
	author = {Wentzel, Kathryn R.},
	title = {Handbook of motivation at school},
	publisher = {Routledge,},
	year = {2009},
	series = {Educational psychology handbook series},
	address = {New York :},
	note = {This edition published in the Taylor & Francis e-Library, 2009},
	url = {http://www.netlibrary.com.libraryumpsa.idm.oclc.org/urlapi.asp?action=summary&v=1&bookid=289653}
}