APA (7th ed.) Citation

National Space Symposium Colorado Springs, Colo, United States Space Foundation, & Nitschke, D. L. (1990). The Sixth National Space Symposium proceedings report. U.S. Space Foundation.

Chicago Style (17th ed.) Citation

National Space Symposium Colorado Springs, Colo, United States Space Foundation, and Diana L. Nitschke. The Sixth National Space Symposium Proceedings Report. Colorado Springs, CO: U.S. Space Foundation, 1990.

MLA (9th ed.) Citation

National Space Symposium Colorado Springs, Colo, et al. The Sixth National Space Symposium Proceedings Report. U.S. Space Foundation, 1990.