Ordering Information

All subscriptions are on a calendar-year basis. Back issues will be mailed on orders received after January 1. Prior year subscriptions will be charged at the current year's prices. Subscriber numbers (when known) should be used on all orders, inquiries, and correspondence.

If order is to be billed, a purchase order must accompany it. In the event that a purchase order cannot be supplied, pre-payment is required.

Subscription cancellations will not be accepted after April 1 of the current subscription year.

Refunds are determined by pro-rating the number of issues which have been mailed. Issues are pro-rated at the single copy cost. Journals cannot be returned to claim credit or reimbursement.

If you have questions or comments about the Global Science journals, including Global Science journals Online, please email info@global-sci.org.