@book{50694,
	author = {M. A. Gabr and El-Dein, M. Nour.},
	title = {Effect of Microbial Biofertilization on Reducing Chemical Fertilizers, Vegetative Growth, Nutritional Status, Yield and Fruit Quality of Apple},
	url = {http://nile.enal.sci.eg/EALE/2005/AJARX/5005/3/121.pdf}
}