TY  - BOOK
AU  - Ghobrial,William Naguib
TI  - Studies on symbiotic nitrogen fixation
PY  - 1981///
KW  - Nitrogen
KW  - Fixation
KW  - Nitrogen-fixing plants
KW  - Rhizobium leguminosarum
N1  - Thesis (Ph.D.)--Mansoura University, 1981; Includes bibliographical references (leaves 118-137 ); Microfiche; Cairo, Egypt; ASUNET; 3 microfiche : negative
ER  -