Gaya APA

Helsdingen, W, A, R, E. (1945). Mission interrupted, the Dutch in the East Indies and their work in the XXth century, a symposium. . Amsterdam dsl: Elsevier.

Gaya MLA

Helsdingen, W.H.van, And, R.Hoogenberk,, Ed.. "Mission interrupted, the Dutch in the East Indies and their work in the XXth century, a symposium. ". Amsterdam dsl: Elsevier, 1945. Buku.