Ākerman, Johan Economic progress and economic crises by Johan Ākerman, PH. D. Translated by Elizabeth Sprigge and Claude Napier. - London Macmillan 1932. - 190 p. diagrs. 23 cm. LCCN: 32025444 Subjects--Topical Terms: EconomicsEconomic Policy LC Class. No.: HB179 / .A32 Dewey Class. No.: 330.1