Tohutoro APA (7th ed.)
Froembgen, H. (1941). Johann Froembgen. Wissmann. Peters. Krüger. Franckh.
Tohutoru Kātū Chicago (17th ed.)
Froembgen, Hanns. Johann Froembgen. Wissmann. Peters. Krüger. Stuttgart: Franckh, 1941.
Tohutoro MLA (9th ed.)
Froembgen, Hanns. Johann Froembgen. Wissmann. Peters. Krüger. Franckh, 1941.
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