Quaternary period in Saudi Arabia : a cooperative research project of the University of Petroleum and Minerals, Dhahran, and the Austrian Academy of Sciences, Vienna 2026-02-15T09:45:48+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Jado, Abdul Raof; Sayari, Saad S.; Zotl, Josef (Springer-Verlag, 1978)