Gaya APA

DeWaard,Nellie., . (1963). Pioneer in Sumatra, the story of Ludwig Nommensen, [repr.]. . London: China Inland Mission.

Gaya MLA

DeWaard,Nellie., . "Pioneer in Sumatra, the story of Ludwig Nommensen, [repr.]. ". London: China Inland Mission, 1963. Buku.