Robinson, Marshall A. An introduction to economic reasoning / by Marshall A. Robinson, Herbert C. Morton and James D. Calderwood. - Revised ed. - Washington : Brookings Institution, c1959 [3rd printing 1961] - xi, 335 p. : ill ; 24 cm. Includes Index. Subjects--Topical Terms: Economics. Dewey Class. No.: 330 / ROI 1961