APA (7th ed.) Citation

Skinner, J. A., Jr. (2019). Planetary geologic mapping: Program status and future needs. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Skinner, James A., Jr. Planetary Geologic Mapping: Program Status and Future Needs. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 2019.

MLA (9th ed.) Citation

Skinner, James A., Jr. Planetary Geologic Mapping: Program Status and Future Needs. U.S. Department of the Interior, U.S. Geological Survey, 2019.