@book{Wenner1987,
author="Manfred W. Wenner",
title="An economic history of Yemen: 1500-1948",
year="1987",
booktitle="Yemen: 3000 Years of Art and Civilisation in Arabia Felix",
editor="Werner Daum",
publisher="Pinguin-Verlag",
address="Innsbruck",
pages="322-29",
keyword0="Coffee",
keyword1="Commerce",
keyword2="Economy",
keyword3="History",
keyword4="YAR",
type="chapter"
}