APA (7th ed.) Citation

Wilshire, H. G. (1973). Geologic map of the Byrgius quadrangle of the Moon. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Wilshire, Howard Gordon. Geologic Map of the Byrgius Quadrangle of the Moon. Washington, D.C.: U.S. Geological Survey, 1973.

MLA (9th ed.) Citation

Wilshire, Howard Gordon. Geologic Map of the Byrgius Quadrangle of the Moon. U.S. Geological Survey, 1973.