TY - RPRT TI - Annual report of the USGS Mission, Kingdom of Saudi Arabia, for the second year of the fifth extension of the USGS-MPMR work agreement : fiscal year 1399/1400 : 1 Rajab 1399-29 Jumad Thani 1400 (27 May 1979-14 May 1980) AU - U.S. Geological Survey Saudi Arabia Mission PY - 1980 UR - https://pubs.usgs.gov/publication/70157384 ID - 70157384 ER -