[51] Capt. Bannacks Observatory Yahk Station / Lieut. Darrah--Observatory for Latitude
MLA
Harris, Joseph S. (Joseph Smith), 1836-1910. [51] Capt. Bannacks Observatory Yahk Station / Lieut. Darrah--Observatory for Latitude. Box 9 | Folder 68. undated. https://collections.library.yale.edu/catalog/2004863.
APA, 6th edition
Harris, Joseph S. (Joseph Smith), 1836-1910. (["Box 9 | Folder 68"])(undated)[[51] Capt. Bannacks Observatory Yahk Station / Lieut. Darrah--Observatory for Latitude]. https://collections.library.yale.edu/catalog/2004863.