RT Book, Whole SR Print DC OPAC T1 American transportation in prosperity and depression / Thor Hultgren T2 Studies in business cycles A1 Hultgren, Thor, 1902- A1 National Bureau of Economic Research YR 1948 FD c1948 SP xxxiii, 397 p. PB National Bureau of Economic Research PP New York LA English (英語) NO Includes index NO 書誌ID=1210012951; NCID=BA08558113; LK [OPAC]http://opac.lib.hosei.ac.jp/opac/opac_link/bibid/1210012951 LK [Webcat Plus]http://webcatplus-equal.nii.ac.jp/libportal/DocDetail?hdn_if_lang=jpn&txt_docid=NCID:BA08558113 OL 30