@book{99234,
	author = {Ayres, Frank},
	title = {Teoría y problemas de geometria proyectiva},
	publisher = {McGraw-Hill},
	year = {c1971.},
	series = {Serie de compendios Schaum},
	address = {México},
	note = {Translation of: Schaum's outline of theory and problems of projective geometry.}
}