@book{5361,
	author = {Indian Standards Institution},
	title = {Indian standard specification for black square bolts and nuts (diameter range 6 to 39 mm) and black square screws (diameter range 6 to 24mm)},
	publisher = {Indian Standards Institution},
	year = {1968},
	address = {New Delhi},
	note = {IS 2585 : 1968}
}