@book{Varisco1987,
author="Daniel Martin Varisco",
title="Rasulid agriculture and the almanac tradition",
year="1987",
booktitle="Yemen: 3000 Years of Art and Civilisation in Arabia Felix",
editor="Werner Daum",
publisher="Pinguin-Verlag",
address="Innsbruck",
pages="309-11",
keyword0="Agriculture",
keyword1="Cycle",
keyword2="Rasulid",
type="chapter"
}