(1958). Westgiebel des Frauenburger Doms.
Tohutoru Kātū Chicago (17th ed.)Westgiebel Des Frauenburger Doms. 1958.
Tohutoro MLA (9th ed.)Westgiebel Des Frauenburger Doms. 1958.
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Tohutoro APA (7th ed.)