Cart Shopping Cart My Store Account Orders Downloads Shopping Cart Remove item Thumbnail image Product Price Quantity Subtotal × 438. The Dissemination of the Mass Unit as Embodied in Prototype Kilogram No. 20 $20.00 438. The Dissemination of the Mass Unit as Embodied in Prototype Kilogram No. 20 quantity $20.00 × 495. Integrated Non-Re-Entry Manned Spacecraft Hull Design $20.00 495. Integrated Non-Re-Entry Manned Spacecraft Hull Design quantity $20.00 × 557. TWA International Computer Flight Planning $20.00 557. TWA International Computer Flight Planning quantity $20.00 × 421. An Empirical Method for Estimating Airframe Cost Factors at the Pre-Design Stage $20.00 421. An Empirical Method for Estimating Airframe Cost Factors at the Pre-Design Stage quantity $20.00 × 424. A Bifilar Moment of Inertia Facility $20.00 424. A Bifilar Moment of Inertia Facility quantity $20.00 × 440. Calibration of Force Transducers by Comparison $20.00 440. Calibration of Force Transducers by Comparison quantity $20.00 × 522. Weight Analysis of ADAM - A Propulsive Wing Turbofan V/STOL Airplane $20.00 522. Weight Analysis of ADAM - A Propulsive Wing Turbofan V/STOL Airplane quantity $20.00 × 520. Self Improvement, Independent Action and Participation $20.00 520. Self Improvement, Independent Action and Participation quantity $20.00 × 508. Investigation of an Electronic Computer as a Solution to Aer Lingus Passenger Check In, Weight & Balance and Aircraft Dispa $20.00 508. Investigation of an Electronic Computer as a Solution to Aer Lingus Passenger Check In, Weight & Balance and Aircraft Dispa quantity $20.00 Coupon: Apply coupon Update cart Available coupons (Click to apply). Cart totals Subtotal $180.00 Tax $0.00 Total $180.00 Proceed to checkout