"Aufsatzsammlung." . . . . . "Henry Melchior Muhlenberg--the roots of 250 years of organized Lutheranism in North America : essays in memory of Helmut T. Lehmann" . . . . . . "Aufsatzsammlung" . . "Henry Melchior Muhlenberg- the roots of 250 years of organized lutheranism in North America : essays in memory of Helmut T. Lehmann" . . . . "Henry Melchior Muhlenberg : the roots of 250 years of organized Lutheranism in North America : essays in memory of Helmut T. Lehmann" .