Studies on nitrogen-fixing blue-green algae in Egyptian soils
Hassan, Mohamed El-Sayed.
Studies on nitrogen-fixing blue-green algae in Egyptian soils [microform]/ دراسات على الطحالب الخضراء المزرقة المثبتة لأزوت الهواء الجوى فى الاراضى المصرية. Mohamed El-Sayed Hassan. - 1978. - 239, 8 leaves : ill. ; 30 cm.
Thesis (Ph.D.) -- Ain Shams University, 1978.
Includes bibliographical reference (leaves [211]-239)
Microfiche.
Cairo, Egypt :
ASUNET,
5 microfiche : negative.
Summary in Arabic.
Cyanobacteria--Egypt.
Nitrogen-fixing algae.
Soils.
Studies on nitrogen-fixing blue-green algae in Egyptian soils [microform]/ دراسات على الطحالب الخضراء المزرقة المثبتة لأزوت الهواء الجوى فى الاراضى المصرية. Mohamed El-Sayed Hassan. - 1978. - 239, 8 leaves : ill. ; 30 cm.
Thesis (Ph.D.) -- Ain Shams University, 1978.
Includes bibliographical reference (leaves [211]-239)
Microfiche.
Cairo, Egypt :
ASUNET,
5 microfiche : negative.
Summary in Arabic.
Cyanobacteria--Egypt.
Nitrogen-fixing algae.
Soils.