@book{Dostal1987, author="Walter Dostal", title="Traditional economy and society", year="1987", booktitle="Yemen: 3000 Years of Art and Civilisation in Arabia Felix", editor="Werner Daum", publisher="Pinguin-Verlag", address="Innsbruck", pages="336-67", keyword0="Agriculture", keyword1="Customary", keyword2="Economy", keyword3="History", keyword4="Law", keyword5="Markets", keyword6="Tarim", keyword7="Tribal", keyword8="Tribes", type="chapter" }