The Rocky Mountains. Emigrants crossing the plains
MLA
Currier & Ives, 152 Nassau St., New York, New Yor, F. F. Palmer, del. The Rocky Mountains. Emigrants crossing the plains. 1866. https://collections.library.yale.edu/catalog/2016111.
APA, 6th edition
Currier & Ives, 152 Nassau St., New York, New Yor, & F. F. Palmer, del. (1866)[The Rocky Mountains. Emigrants crossing the plains]. https://collections.library.yale.edu/catalog/2016111.