Nutrient mobility in soils : accumulation & losses / editor: Orvis P. Engelstad.
— 3rd print. / 1980. — Madison, Wis. : Soil Science Society of America, 1970. 81 p. : il. ; 23 cm. — (SSSA special publication series ; nº 4)
"Papers presented at a symposium sponsored by Division S-8 of the Soil Science Society of America and held on November 11, 1969, at Detroit, Michigan, during the 1969 annual meeting of SSSA.".
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