APA
Hegazi N., Monib M. & Fayez M. (1994). Nitrogen fixation with non-legumes: the sixth international symposium on nitrogen fixation with non-legumes, ismailia-egypt, 6 - 10 september 1993. Egypt: The American University in Cairo Press.
Chicago
Hegazi N.A, Monib M and Fayez M. 1994. Nitrogen fixation with non-legumes: the sixth international symposium on nitrogen fixation with non-legumes, ismailia-egypt, 6 - 10 september 1993. Egypt: The American University in Cairo Press.
Harvard
Hegazi N., Monib M. and Fayez M. (1994). Nitrogen fixation with non-legumes: the sixth international symposium on nitrogen fixation with non-legumes, ismailia-egypt, 6 - 10 september 1993. Egypt: The American University in Cairo Press.
MLA
Hegazi N.A, Monib M and Fayez M. Nitrogen fixation with non-legumes: the sixth international symposium on nitrogen fixation with non-legumes, ismailia-egypt, 6 - 10 september 1993. Egypt: The American University in Cairo Press. 1994.