Mattes, M. C. (2013). Twentieth-Century Lutheran theologians. Refo500 academic studies.
Citazione stile Chigago Style (17a edizione)Mattes, Mark C. "Twentieth-Century Lutheran Theologians." Refo500 Academic Studies 2013.
Citatione MLA (8a ed.)Mattes, Mark C. "Twentieth-Century Lutheran Theologians." Refo500 Academic Studies, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.