TY - BOOK AU - Kellerman,Karl F. TI - Methods of legume inoculation T2 - United States. Dept of Agriculture. Bureau of Plant Industry. Circular AV - SB19 .A33 no. 63 PY - 1910/// CY - Washington PB - Govt. Print. Off. KW - Nitrifying bateria KW - Soil inoculation ER -