MLA

Friedel, Adam de[?]. Fossils, Engraved on a Daguerreotype Plate by the Process of L. L. Boscawen Ibbetson ... 1840. https://collections.library.yale.edu/catalog/2041652.

APA, 6th edition

Friedel, A. de[?]. (1840). Fossils, engraved on a Daguerreotype plate by the process of L. L. Boscawen Ibbetson ... [Photolithography, Photomechanical prints, Planographic prints, Prints (Visual works)]. https://collections.library.yale.edu/catalog/2041652.