61. Transactions of the Third International Congress of Soil Science, Oxford, England, 1935: Volume III. Plenary and Commission Papers; Discussions; Commission and Other Reports Collection: Core Historical Literature of Agriculture Publisher: T. Murby & Co., Publication Place: London : Date: 1935 Format: Book
62. Soil erosion and its control Creator: Ayres, Quincy Claude, 1891- Collection: Core Historical Literature of Agriculture Publisher: McGraw-Hill, Publication Place: New York : Date: 1936 Format: Book
63. Pedology Creator: Joffe, Jacob Samuel, 1887- Collection: Core Historical Literature of Agriculture Publisher: Rutgers University Press, Publication Place: New Brunswick, N.J. : Date: 1936 Format: Book
64. Conservation of the soil Creator: Gustafson, Axel Ferdinand, 1880- Collection: Core Historical Literature of Agriculture Publisher: McGraw-Hill, Publication Place: London : Date: 1937 Format: Book
65. Mother earth: being letters on soil addressed to Professor R. G. Stapledon Creator: Robinson, Gilbert Wooding, b. 1888. Collection: Core Historical Literature of Agriculture Publisher: T. Murby & Co., Publication Place: London : Date: 1937 Format: Book
66. Crop management and soil conservation Creator: Cox, Joseph Frank, 1890- Collection: Core Historical Literature of Agriculture Publisher: Chapman & Hall, Ltd., Publication Place: London : Date: 1937 Format: Book
67. Micropedology Creator: KubieÌna, Walter Ludwig, 1897- Collection: Core Historical Literature of Agriculture Publisher: Collegiate Press, Inc., Publication Place: Ames, Iowa : Date: 1938 Format: Book
68. Bio-dynamic farming and gardening: soil fertility renewal and preservation Creator: Pfeiffer, Ehrenfried, 1899-1961 Collection: Core Historical Literature of Agriculture Publisher: Rudolf Steiner Publishing Co., Publication Place: London : Date: 1938 Format: Book
69. An introduction to soil science Creator: Isgur, Benjamin, 1911- Collection: Core Historical Literature of Agriculture Publisher: Agricultural Scientific Publishing Co., Publication Place: Boston, Mass. : Date: 1938 Format: Book
70. Factors of soil formation: a system of quantitative pedology Creator: Jenny, Hans, 1899-1992. Collection: Core Historical Literature of Agriculture Publisher: McGraw-Hill Book Company, Inc., Publication Place: London : Date: 1941 Format: Book