Ordering Information Allow two to four weeks for delivery. Domestic orders from individuals must be prepaid and will be shipped USPS ground service unless otherwise requested. All foreign orders must be prepaid by credit card and will be shipped via the United States Postal Service. Discounts are available on retail and standing orders. Prices are subject to change without notice.
Returns require prior permission.
Full credit is allowed for current editions returned in clean, resalable condition within six months of purchase. Return requests must include the invoice number and date. Credits must be used within six months of issue date. Examination copies of books to be considered for classroom use should be requested on institutional letterhead and include course name, expected enrollment, instructor's name, and address of bookstore that will be placing the order. If an order for ten or more copies is not received within forty-five days, or the book is not returned in salable condition after examination, an invoice will be issued.