TY  - BOOK
AU  - Salem,Kasem Ghoneim
TI  - Effect of some herbicides on nitrogen - fixing blue - green algae
PY  - 1980///
KW  - Herbicides
KW  - Environmental aspects
KW  - Nitrogen
KW  - Fixation
KW  - Green algae
N1  - Thesis (Ph.D )--Ain-Shams University, 1980; Includes bibliographical references (leaves 139-152); Microfiche; Cairo, Egypt; ASUNET; 3 microfiches : negative
ER  -