Cart Shopping Cart My Store Account Orders Downloads Shopping Cart Remove item Thumbnail image Product Price Quantity Subtotal × 1856. Cost Estimating Methods for Advanced Space Systems $20.00 1856. Cost Estimating Methods for Advanced Space Systems quantity $20.00 Coupon: Apply coupon Update cart Available coupons (Click to apply). Cart totals Subtotal $20.00 Tax $0.00 Total $20.00 Proceed to checkout