@book{544282,
	author = {ZAMAN,FIAZ-UD-DIN., and FIAZ-UD-DIN, ZAMAN.},
	title = {An introduction to elastodynamics/ },
	publisher = {Director General, National Academy of Higher Education UNiversity Grants Commision,Islamabad,},
	year = {c1987.},
	address = {Pakistan:}
}