@book {2115,
	title = {Individual and environment : monozygotic twins reared apart},
	year = {1980},
	note = {by Niels Juel-Nielsen24 cm},
	pages = {154, 292, 16 p},
	publisher = {International Universities Press},
	organization = {International Universities Press},
	edition = {Rev. ed},
	address = {New York},
	keywords = {Environment, Nature and nurture, Twins},
	isbn = {082362630X},
	author = {Juel-Nielsen, Niels}
}
