TY  - BOOK
AU  - Hassan,Mohamed El-Sayed
TI  - Studies on nitrogen-fixing blue-green algae in Egyptian soils
PY  - 1978///
KW  - Cyanobacteria
KW  - Egypt
KW  - Nitrogen-fixing algae
KW  - Soils
N1  - Thesis (Ph.D.) -- Ain Shams University, 1978; Includes bibliographical reference (leaves [211]-239); Microfiche; Cairo, Egypt; ASUNET; 5 microfiche : negative
ER  -