Michael Erkelenz reviewing the history of Rheinhold & Mahla Group to the Bilfinger Berger Group at the International Management Conference, November 7, 2002, A3054-00344. Missouri Historical Society Library and Research Center.

Michael Erkelenz reviewing the history of Rheinhold & Mahla Group to the Bilfinger Berger Group at the International Management Conference, November 7, 2002, A3054-00344. Missouri Historical Society Library and Research Center. https://mohistory.mobiusconsortium.org/repositories/2/digital_objects/16845 Accessed November 13, 2024.