@book{9490,
	author = {Chiu, Hong-yee and Hoffmann, William F.},
	title = {Gravitation and relativity /},
	publisher = {W.A. Benjamin,},
	year = {1964.},
	series = {Physical investigations of the universe;},
	address = {New York :},
	note = {Most of the chapters are derived from lectures presented at a seminar at the NASA Goddard Institute for Space Studies, N.Y.C., 1961-62.}
}