TY - RPRT TI - A qualitative appraisal of the hydrology of the Yemen Arab Republic from Landsat images AU - Maurice J. Grolier AU - G. Chase Tibbitts AU - Mohammed Mukred Ibrahim PY - 1984 DO - 10.3133/wsp1757p UR - https://pubs.usgs.gov/publication/wsp1757P ID - wsp1757P ER -