Eckhardt, Bob. The tides of power conversations on the American Constitution between Bob Eckhardt, Member of Congress from Texas, and Charles L. Black, Jr., Sterling professor of law, Yale University. - New Haven Yale University Press 1976. - ix, 225 p. 22 cm. ISBN: 0300019742 10.95 LCCN: 76361139 Subjects--Corporate Names: United States Constitution. Subjects--Geographic Terms: United States--Constitutional law. LC Class. No.: KF4550 / .E34 Dewey Class. No.: 342/.73/044