@book{27040,
	author = {Zulliger, Hans Alfred, and Joachimsthal, Clara S.,},
	title = {Moeilijkheden bij de opvoeding van kinderen /},
	publisher = {Haga,},
	year = {1937.},
	series = {Afwijkende kinderen ;},
	address = {'s-Gravenhage :},
	note = {Lit.opg.: p. 207.}
}