@book{56177,
	author = {Porst, Rolf},
	title = {Fragebogen},
	publisher = {Springer VS},
	year = {2014},
	series = {Studienskripten zur Soziologie},
	address = {Wiesbaden},
	edition = {4., erw. Aufl. },
	note = {Literaturangaben},
	url = {http://d-nb.info/1010800981/04}
}