The age of mammals in Europe, Asia and North America, by Henry Fairfield Osborn

Chicago citation style
Osborn, Henry Fairfield, 1857-1935. The age of mammals in Europe, Asia and North America, by Henry Fairfield Osborn. Retrieved from the Digital Public Library of America, https://archive.org/details/ageofmammalsineu00osbo_2. (Accessed December 14, 2018.)
APA citation style
Osborn, Henry Fairfield, 1857-1935, The age of mammals in Europe, Asia and North America, by Henry Fairfield Osborn. Retrieved from the Digital Public Library of America, https://archive.org/details/ageofmammalsineu00osbo_2
MLA citation style
Osborn, Henry Fairfield, 1857-1935. Retrieved from the Digital Public Library of America <https://archive.org/details/ageofmammalsineu00osbo_2>.
Note: These citations are programmatically generated and may be incomplete.