@book{222146,
	author = {United States},
	title = {Pakistan, physiography},
	publisher = {Central Intelligence Agency},
	year = {2010]},
	address = {[Washington},
	edition = {[Relief ed.]},
	note = {Relief shown by shading and spot heights},
	url = {http://purl.fdlp.gov/GPO/gpo4917}
}