{"id":"001031176","type":"book","title":"Conventional Potassium-Argon and Argon-40/Argon-39 Dating of Volcanic Rocks from East Rudolf","publisher":"The University of Chicago Press","publisher-place":"Chicago/London","pages":"123-147","container-title":"Earliest Man and Environments in the Lake Rudolf Basin : Stratigraphy, Paleoecology, and Evolution","author":[{"family":"Fitch","given":"F. J."}],"issued":{"raw":"1976"}}