@book{132045,
	author = {Pumarada O'Neill, Luis F., and Rodríguez Cruz, Juan},
	title = {Los puentes históricos de Puerto Rico},
	publisher = {Universidad de Puerto Rico, Centro de Investigación y Desarrollo},
	year = {1991.},
	series = {Bibliography : p. 148-150},
	address = {Mayagüez, P. R.}
}