1. Challenger 1 & 2 :
Author: text and photos by Walter Böhm and Peter Siebert ; illustrations by Hubert Cance.
Library: Center and Library of Islamic Studies in European Languages (Qom)
Subject: Challenger 1 (Tank),Challenger 2 (Tank),Tanks (Military science)-- 20th century.,Tanks (Military science)-- Great Britain.,Tanks (Military science),Great Britain., 7
