Gaya APA

Roemer, L, A, V. (1921). Historical Sketches ( An Introduction to the Fourth Congress of the Far Eastern Association of Tropical Medicine) . Batavia: Javasche Boekhandel En Drukkerij.

Gaya MLA

Roemer, L.S., A.M., Von. "Historical Sketches ( An Introduction to the Fourth Congress of the Far Eastern Association of Tropical Medicine)". Batavia: Javasche Boekhandel En Drukkerij, 1921. Koleksi Elektronik.