APA (7th ed.) Citation

Childs, O. E. (1988). Correlation of stratigraphic units in North America (COSUNA) documentation records for southern Arizona and vicinity. [Bureau of Geology and Mineral Technology?].

Chicago Style (17th ed.) Citation

Childs, Orlo E. Correlation of Stratigraphic Units in North America (COSUNA) Documentation Records for Southern Arizona and Vicinity. [Tucson, Ariz.?]: [Bureau of Geology and Mineral Technology?], 1988.

MLA (9th ed.) Citation

Childs, Orlo E. Correlation of Stratigraphic Units in North America (COSUNA) Documentation Records for Southern Arizona and Vicinity. [Bureau of Geology and Mineral Technology?], 1988.