Cite

Trumpeter Swan at Red Rock Lake; Yellowstone National Park; Grand Teton National Park; Bear River Marsh, Utah

MLA

Oastler, Frank Richard, 1871-1936. Trumpeter Swan at Red Rock Lake; Yellowstone National Park; Grand Teton National Park; Bear River Marsh, Utah. Box 60, folder 60. [1932-1933]. https://collections.library.yale.edu/catalog/15830827.

APA, 6th edition

Oastler, Frank Richard, 1871-1936. (["Box 60, folder 60"])([1932-1933])[Trumpeter Swan at Red Rock Lake; Yellowstone National Park; Grand Teton National Park; Bear River Marsh, Utah]. https://collections.library.yale.edu/catalog/15830827.