Cita APA (7a ed.)

Merril, G. P. (1924). The first one hundred years of American Geology. Yale University.

Cita Chicago Style (17a ed.)

Merril, George P. The First One Hundred Years of American Geology. New Haven: Yale University, 1924.

Cita MLA (9a ed.)

Merril, George P. The First One Hundred Years of American Geology. Yale University, 1924.