@book{Dubach1977,
author="Werner Dubach",
title="A Study of Traditional Forms of Habitation Types and Types of Settlements of the Yemen Arab Republic or Arab Republic of Yemen: A Study of Traditional Forms of Habitation and Types of Settlement",
year="1977",
publisher="Airphoto Interpretation Project",
address="Zurich",
keyword0="Architecture",
keyword1="Houses",
type="book"
}