http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
ix, 361 pages including tables, diagrams ; 24 cm.
Based in part on the author's articles in the Journal of farm economics, 1942-44, and on reports prepared for the Bureau of agricultural economics and the War Food administration, 1943-44. cf. p. vi.