Agee, Alva, 1858-1943. Farm sources of soil fertility. - Trenton, 1917. - 3 p. l., p. 253-290. 23 cm. - New Jersey. Dept. of Agriculture. Bulletin no. 8, September, 1917 . LCCN: agr17001209 Subjects--Topical Terms: Fertilizers. LC Class. No.: S91 / .A32 no. 8 National Agricultural Library Call No.: 2M / 46B no.8