@book{Tutwiler1990,
author="Richard N. Tutwiler",
title="Agricultural labor and technological change in the Yemen Arab Republic",
year="1990",
booktitle="Labor and Rainfed Agriculture in West Asia and North Africa",
editor="Dennis Tully",
publisher="Kluwer Academic Publishers",
address="Dordrecht",
pages="n.a.",
keyword0="Agriculture",
keyword1="Crops",
keyword2="Cycle",
keyword3="Migration",
keyword4="Rainfed",
keyword5="Regions",
type="chapter"
}