Engineering graphics, Part1 & 2 /
John, K C
Engineering graphics, Part1 & 2 / K C John, P I Varghese - 4th ed. - Trichur : Jovast Publishers, c1989.
Engineering graphics, Part1 & 2 / K C John, P I Varghese - 4th ed. - Trichur : Jovast Publishers, c1989.