Billyou, De Forest. Air law. - [New York Ad Press] 1963. - xxvi, 608 p. map (on lining papers) 26cm. Bibliographical footnotes. LCCN: 63016437 Subjects--Topical Terms: Aeronautics--Laws and regulations.--United States LC Class. No.: KF;2400 / B556 Dewey Class. No.: 387.7