"banga, t. "
mechanical estimating and costing;a text book for engineerin: g students/ t. banga - 12 ed. - india : khanna 1992. - "vii, 382p.; 21 cm."
620. 1 ban
mechanical estimating and costing;a text book for engineerin: g students/ t. banga - 12 ed. - india : khanna 1992. - "vii, 382p.; 21 cm."
620. 1 ban