(1913). Rindviehzucht der Wilstermarsch.
Tohutoru Kātū Chicago (17th ed.)Rindviehzucht Der Wilstermarsch. 1913.
Tohutoro MLA (9th ed.)Rindviehzucht Der Wilstermarsch. 1913.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.
Tohutoro APA (7th ed.)