Ruben 2003
- Full Citation
- Ruben, I. (ed.) The Petra Siq. Nabataean Hydrology Uncovered. Texts by: U. Bellwald, M. al-Huneidi, A. Salihi, R. naser. Photographs by U. Bellwald, W. Benz, D. keller, M. Kharouf, I. Ruben, J/ Taylor. Illustrations by Intermonument Restauro Bellwald, Middle East Engineering Management. Amman: Petra National Trust, 2003.