MLA

Velhagen & Klasing (Firm). Der Orient.. BRBL_00285. [1915?]. https://collections.library.yale.edu/catalog/15506447.

APA, 6th edition

Velhagen & Klasing (Firm). (["BRBL_00285"])([1915?])[Der Orient.]. https://collections.library.yale.edu/catalog/15506447.