Phelps, T.
Old World Vipers - A Natural History of the Azemiopinae, and Viperinae
Frankfurt am Main 2010, HC., 558 pages, more than 566 photographs, 97 distribution maps, special chapter on snakebite envenomationby David A. Warrell. Preface by Wolfgang Wüster
ISBN 978-3-89973-470-6