APA (7th ed.) Citation

Geological Survey (U.S.) & Ellersieck, I. (1990). Reconnaissance geologic map of the De Long Mountains A-2 and B-2 quadrangles and part of the C-2 quadrangle, Alaska. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Inyo Ellersieck. Reconnaissance Geologic Map of the De Long Mountains A-2 and B-2 Quadrangles and Part of the C-2 Quadrangle, Alaska. Reston, Va.: The Survey, 1990.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Inyo Ellersieck. Reconnaissance Geologic Map of the De Long Mountains A-2 and B-2 Quadrangles and Part of the C-2 Quadrangle, Alaska. The Survey, 1990.