@book{95921,
	author = {Rademacher, Hans and Toeplitz, Otto},
	title = {Números y figuras},
	publisher = {Alianza},
	year = {c1970.},
	series = {El libro de bolsillo. Sección: Ciencia y técnica},
	address = {Madrid},
	note = {Translation of: Von Zahlen und Figuren = The enjoyment of mathematics.}
}