@book{34993,
	title = {Chemical engineer's handbook /},
	publisher = {National Bookstore,},
	year = {c1975.},
	address = {Manila :},
	edition = {5th ed},
	note = {First-3ed. edited by John H. Perry ; 4th ed. under the editorial direction of Robert H. Perry, Cecil H. Chilton and Sidney D. Kirkpatrick.}
}