@book{843,
	author = {Porter, Whitworth, and Watson, Charles Moore,},
	title = {History of the Corps of Royal Engineers.},
	publisher = {Longmans, Green,},
	year = {1889-1915.},
	address = {London ;},
	note = {Vol. 3 by Colonel Sir Charles M. Watson.},
	url = {http://data2.collectionscanada.gc.ca/e/e439/e010963318-v8.jpg}
}