@book{8621,
	author = {Gill, P.S},
	title = {Engineering Drawing (Geometrical Drawing)},
	publisher = {S.K Kataria & Sons,},
	year = {1997.},
	address = {India:},
	url = {http://books.google.com.pk/books/about/Engineering_Drawing.html?id=Z4uPZcD21rQC&redir_esc=y}
}