ALL ORDERS PLACED FROM THIS SITE ARE SECURE. VERISIGN IS THE CERTIFICATE HOLDER. SSL ENCRYPTION IS UTILIZED TO PROTECT YOUR INFORMATION

UPDATE POLICY

Updates are available annually. Update price is $35.00 per volume year for individual versions, $60.00 per volume year for institutional versions.

You must be a registered user to qualify for updates. Quantity discount users are not eligible for updates. Please contact us if you have questions or comments.

BACK TO HOME PAGE