TY  - BOOK
AU  - Elkan, Gerald H.
AU  - Upchurch, Robert G.
TI  - Current issues in symbiotic nitrogen fixation
SN  - 0792343670
U1  - 631.841 22
PY  - 1997///
CY  - Netherlands
PB  - Kluwer Academic Publishers
KW  - Soil science
KW  - Nitrogen
KW  - Fixation
N1  - Includes bibliographical references
ER  -