APA (7th ed.) Citation

Salas, R., & Friedman, S. T. (2015). Unidentified: The UFO phenomenon : how world governments have conspired to conceal humanity's biggest secret (First edition.). The Career Press.

Chicago Style (17th ed.) Citation

Salas, Robert, and Stanton T. Friedman. Unidentified: The UFO Phenomenon : How World Governments Have Conspired to Conceal Humanity's Biggest Secret. First edition. Pompton Plains, NJ: The Career Press, 2015.

MLA (9th ed.) Citation

Salas, Robert, and Stanton T. Friedman. Unidentified: The UFO Phenomenon : How World Governments Have Conspired to Conceal Humanity's Biggest Secret. First edition. The Career Press, 2015.