Heinz, D. (1987). Ludwig Richard Conradi: Missionar d. Siebenten-Tags-Adventisten in Europa Archives of international Adventist history.
Chicago Style (17th ed.) CitationHeinz, Daniel. "Ludwig Richard Conradi: Missionar D. Siebenten-Tags-Adventisten in Europa." Archives of International Adventist History 1987.
MLA (8th ed.) CitationHeinz, Daniel. "Ludwig Richard Conradi: Missionar D. Siebenten-Tags-Adventisten in Europa." Archives of International Adventist History, 1987.
Warning: These citations may not always be 100% accurate.