@book{59157,
	author = {El-Hadidi, S. M. and Mousa, A. A. A.},
	title = {Effect of using some organic materials on growth, yield and some nutrients uptake of spinach plants grown under salt conditions},
	url = {http://nile.enal.sci.eg/EALE/2012/MUJSSAE/312/10/1001.pdf}
}