TY  - BOOK
AU  - Nelson, Lewis Balley,
ED  - Soil Science Society of America.
TI  - Changing patterns in fertiliser use: proceedings of a symposium sponsored by the Soil Science Society of America and held at the Palmer House in Chicago, Illinois, february 14 and 15, 1968
U1  - 631.8 
PY  - 1968///
CY  - Madison, Wis.,
PB  - Soil Science Society of America
KW  - Fertilisers and manures
KW  - Congresses
N1  - Includes bibliographical references
ER  -