This service is available for an additional fee. Delivery time outside the U.S. Orders are shipped air mail to a delivery point within your country and then sent by surface mail to your address. In some countries, the internal surface mail delivery can be slow. All Sales are Final NTIS electronically stores our collection of well over 2 million items and custom-reproduces a single copy specifically for your order. Therefore, NTIS does not accept cancellations, requests for modifications, or returns for credit or refund.
All sales are final.