Study week on the econometric approch to development planning - Vatican : North-Holland Pub., c1965 - xlvii, 1259 p. : ill. (some col.) ; 25 cm. - Pontificiae Academiae Scientiarum scripta varia ; 28 . Includes index October 7,13, 1963 ISBN: CTL90.00 Subjects--Topical Terms: Remote sensing--Developing countrieses Dewey Class. No.: 338.9018