APA (7th ed.) Citation

Geological Survey (U.S.), Geological Survey of Ohio, & Hildenbrand, T. G. (1987). Filtered magnetic anomaly maps of Ohio. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Geological Survey of Ohio, and T. G. Hildenbrand. Filtered Magnetic Anomaly Maps of Ohio. Reston, Va.: U.S. Geological Survey, 1987.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Filtered Magnetic Anomaly Maps of Ohio. U.S. Geological Survey, 1987.