APA (7th ed.) Citation

Geological Survey (U.S.), Blair, W. N., Page, N. J., & Johnson, M. G. (1977). Map and list of reported occurrences of platinum-group metals in the conterminous United States. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Will N. Blair, Norman J. Page, and Maureen G. Johnson. Map and List of Reported Occurrences of Platinum-group Metals in the Conterminous United States. Reston, Va.: The Survey, 1977.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Map and List of Reported Occurrences of Platinum-group Metals in the Conterminous United States. The Survey, 1977.