APA (7th ed.) Citation

Geological Survey (U.S.), United States. National Aeronautics and Space Administration, Leonard, G. J., & Tanaka, K. L. (2001). Geologic map of the Hellas Region of Mars. U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by USGS Information Services.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), United States. National Aeronautics and Space Administration, Gregory J. Leonard, and Kenneth L. Tanaka. Geologic Map of the Hellas Region of Mars. Reston, VA : Denver, CO: U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by USGS Information Services, 2001.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Geologic Map of the Hellas Region of Mars. U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by USGS Information Services, 2001.