MLA

Plowden, David. Sternwheel Steamer Lone Star, Mississippi River Towboat, Builder's Sand Gravel Co. Davenport, Iowa (964-519). 1964. https://collections.library.yale.edu/catalog/2041330.

APA, 6th edition

Plowden, D. (1964). Sternwheel Steamer Lone Star, Mississippi River Towboat, Builder's Sand Gravel Co. Davenport, Iowa (964-519) [Gelatin silver prints, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2041330.