@book{9559,
	author = {Pervaiz Habibullah. and Quamar, Jawaid},
	title = {Global Warming : a threat to aviation calculations in relevance to aerodynamics},
	publisher = {Education Pakistan Center,},
	year = {2003.},
	address = {Karachi :},
	url = {http://www.amazon.com/exec/obidos/ASIN/chopaconline-20}
}