APA (7th ed.) Citation

Gray, C. S. (1977). The geopolitics of the nuclear era: Heartland, rimland and the technological revolution. National Strategy Information Center.

Chicago Style (17th ed.) Citation

Gray, Colin S. The Geopolitics of the Nuclear Era: Heartland, Rimland and the Technological Revolution. New York: National Strategy Information Center, 1977.

MLA (9th ed.) Citation

Gray, Colin S. The Geopolitics of the Nuclear Era: Heartland, Rimland and the Technological Revolution. National Strategy Information Center, 1977.