In his own wordsDOI: info:10.1515/agp-2016-0030v. 66No. 4Polish Academy of Sciences, University of Warsaw, Geology DepartmentIII–XIII
Johnson, Kirk R. and Baysinger, Dave. 2016. "In his own words." Acta Geologica Polonica, 66, (4) III–XIII. https://doi.org/10.1515/agp-2016-0030.