APA (7th ed.) Citation

Cornwall, H. R., & Krieger, M. L. H. (1975). Geologic map of the Grayback quadrangle, Pinal County, Arizona. The Survey.

Chicago Style (17th ed.) Citation

Cornwall, Henry R., and Medora Louise Hooper Krieger. Geologic Map of the Grayback Quadrangle, Pinal County, Arizona. Reston, Va.: The Survey, 1975.

MLA (9th ed.) Citation

Cornwall, Henry R., and Medora Louise Hooper Krieger. Geologic Map of the Grayback Quadrangle, Pinal County, Arizona. The Survey, 1975.

Warning: These citations may not always be 100% accurate.