Charles Darwin as geologist. The Rede lecture given at the Darwin centennial commemoration on 24 June 1909
MLA
Geikie, Archibald. Charles Darwin As Geologist: The Rede Lecture Given At the Darwin Centennial Commemoration On 24 June 1909. Cambridge: University press, 1909
APA, 7th edition
Geikie, A. (1909). Charles Darwin as geologist: The Rede lecture given at the Darwin centennial commemoration on 24 June 1909. Cambridge: University press
Chicago, 17th edition
Geikie, Archibald. Charles Darwin as geologist: The Rede lecture given at the Darwin centennial commemoration on 24 June 1909. Cambridge: University press, 1909