@book{1619,
	title = {Transportation and the prospects for improved efficiency},
	publisher = {National Academy of Engineering},
	year = {1973. },
	address = {Washington,},
	note = {A symposium sponsored by the National Science Foundation, and others, at the 8th autumn meeting of the National Academy of Engineering, Oct. 12-13, 1972. },
	url = {http://books.google.com/books?id=Y78iAQAAMAAJ}
}