Farmers of forty centuries, or, Permanent agriculture in China, Korea and Japan / King, F. H. (Franklin Hiram), 1848-1911. Bruce, J. Percy (Joseph Percy), b. 1861. text Madison, Wis. : Mrs. F. H. King, 1911. eng ix, 441 p. : 20 cm. Agriculture -- China. Agriculture -- Japan. Agriculture -- Korea. Sustainable Agriculture. Also available through World Wide Web.