To make secure payments via PayPal™ for Services and Products from Willoughby International click the appropriate transaction button below:

To make secure payments via PayPal™

for Services and Products from Willoughby International

click the appropriate transaction button below:

Technology Choice

(Boulder and San Francisco: Westview Press, 1990).

Book by Kelvin Willoughby.

To purchase one or more copies of this book, click “Buy Now”

After making your payment, click HERE to download the book as a PDF file (3.2 MB)

Professional Services Provided by

Willoughby International LLC

To pay for services provided by Willoughby International, select the appropriate Professional Rate unit (standard, half or quarter, etc.), provide a professional service reference (and/or comment), then click on the “Add to Cart” button to enter the number of units and make a payment. Payments may be made by credit card or PayPal™ through the secure PayPal™ payment system.