@book{85429,
	author = {Maha Tawfik Youssef Mohamed and Raga Attala Hanna , },
	title = {The effect of a suggested program on enhancing environmental awareness and voabulary building of the first year preparatory students / },
	publisher = {Maha Tawfik Youssef Mohamed , },
	year = {2003},
	address = {Cairo : },
	url = {http://172.23.153.220/th.pdf}
}