All subscriptions must be paid in advance in U.S. currency check, credit card, or money order. Refunds and cancellations are not accepted. Prices for subscriptions include postage and handling charges. Discounts do not apply to journal subscriptions. Published prices expire on December 31, 2000.
Prices are subject to change without notice.
All subscriptions must be prepaid. Pro forma invoices may be sent, but issues will not be mailed prior to receipt of payment. Prices are subject to change without notice. Individual Orders . Only personal check, credit card, or money order will be accepted for individual orders.