@book{45187,
	author = {Educational Development Center, IPS Group.},
	title = {Introductory physical science.},
	publisher = {United Pub. Co,},
	year = {c1967.},
	address = {Manila :},
	edition = {Philippine ed., 3rd ed.},
	note = {Copy imperfect : 5.p.-p.2, bladed.}
}