Cite

223. [Blue Lupine on the Slope of a Prairie Ridge.]

MLA

McClintock, Walter, 1870-1949. 223. [Blue Lupine on the Slope of a Prairie Ridge.]. Box 61, folder 3052. 1938. https://collections.library.yale.edu/catalog/2008496.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 61, folder 3052"])(1938)[223. [Blue Lupine on the Slope of a Prairie Ridge.]]. https://collections.library.yale.edu/catalog/2008496.