TY - BOOK TI - The national geographic magazine. Vol. 4, 1930s : with 3 CDs SN - 0791128083 U1 - NB0057 PY - 1997/// CY - Washington D.C. PB - National Geographic Society N1 - CD-1 : Jan.1930-Apr.1933 CD-2 : May.1933-Aug.1936 CD-3 : Sep.1936-Dec.1939 The 30s provides a glimpse of a world in transition on easy to access CD-ROMs ER -