TY  - BOOK
AU  - Keister, Donald L; Cregan, Perry B
TI  - The rhizosphere and plant growth: papers presented at a symposium held May 8-11, 1989, at the Beltsville Agricultural Research Centre(BARC), Beltsville, Maryland
SN  - 792310323
PY  - 1991///
CY  - Dordrecht
PB  - Kluwer Academic Publishers
ER  -