@book{60810,
	author = {Robertis, Eduardo D. P. de. and Nowinski, Wiktor W.},
	title = {Citología general},
	publisher = {El Ateneo,},
	year = {1963},
	address = {Buenos Aires :},
	note = {Trad. de la 4 ed. en inglés de 1960?}
}