Home › Authors › P. T. H. Unwin 👤 P. T. H. Unwin 2 books Books by P. T. H. Unwin The Geography of urban-rural interaction in developing countries 1989 al-Zirāʻah fī Dawlat al-Imārāt al-Zirāʻah fī Dawlat al-Imārāt al-ʻArabīyah al-Muttaḥidah 1983