@book{248037,
	author = {United Nations. Department of Technical Co-operation for Development. },
	title = {Twelfth United Nations regional cartographic conference for Asia and the Pacific : Bangkok, 20-28 February 1991/ },
	publisher = {United Nations, },
	year = {1991.},
	address = {New York : },
	note = {V.1. Report of the conference. 
}
}