These Three are One: The Practice of Trinitarian Theology David S. Cunningham ISBN: 978-1-55786-962-3 Hardcover 388 pages January 1998, Wiley-Blackwell US $166.95 Add to Cart This price is valid for United States. Change location to view local pricing and availability. This is a Print-on-Demand title. It will be printed specifically to fill your order. Please allow an additional 5-6 days delivery time. The book is not returnable.