APA (7th ed.) Citation

Howard, J. H. (1979). Geologic map of the Phaethontis quadrangle of Mars. The Survey.

Chicago Style (17th ed.) Citation

Howard, James Hatten. Geologic Map of the Phaethontis Quadrangle of Mars. Reston, Va.: The Survey, 1979.

MLA (9th ed.) Citation

Howard, James Hatten. Geologic Map of the Phaethontis Quadrangle of Mars. The Survey, 1979.

Warning: These citations may not always be 100% accurate.