APA (7th ed.) Citation

O'Connor, H. G. (1960). Geology and ground-water resources of Douglas County, Kansas. s.n.].

Chicago Style (17th ed.) Citation

O'Connor, Howard G. Geology and Ground-water Resources of Douglas County, Kansas. [Lawrence: s.n.], 1960.

MLA (9th ed.) Citation

O'Connor, Howard G. Geology and Ground-water Resources of Douglas County, Kansas. s.n.], 1960.