Cart Shopping Cart My Store Account Orders Downloads Shopping Cart Remove item Thumbnail image Product Price Quantity Subtotal × 852. A Surface Integral Method for Computer Calculation of Mass Properties $20.00 852. A Surface Integral Method for Computer Calculation of Mass Properties quantity $20.00 × 858. The Weight Engineer's Role in Management Control $20.00 858. The Weight Engineer's Role in Management Control quantity $20.00 Coupon: Apply coupon Update cart Available coupons (Click to apply). Cart totals Subtotal $40.00 Tax $0.00 Total $40.00 Proceed to checkout