@proceedings {213279,
	title = {Microbial contamination of non sterile raw materials.  I. General Survey.   },
	journal = {IVth. Conf. Microbiol., Cairo },
	year = {1980},
	pages = {Vol. 1: Soil, Food and  Industrial Microbiology, 411-442},
	publisher = {Egyptian Sciety of Microbiology},
	author = {A. Khatibi and H.H.Zedan and Salama, AA and O.M. El-Tayeb}
}
