If with a nonprofit institution, submit your order on an official purchase order form. Include the product number, title, and price. You may fax or mail your purchase order. If your institution does not accept backorders, please specify this on your order. We do not accept preview or evaluation orders.
All items shipped are payable according to the terms of the invoice.
There is no minimum order. Orders are normally processed within three weeks. Individuals paying by credit card may also fax orders on our order form . Firms and individuals may prepay or use MasterCard or Visa. All international orders must be prepaid.