NASA Wallops Flight Facility
NASA
2006-12-19
Wallops Flight Facility Range User’s Handbook, Version G, Effective December 1, 2003. 840-HDBK-0001G. Page 3. <a rel="nofollow" class="external free" href="http://www.wff.nasa.gov/multimedia/docs/wffruh.pdf">http://www.wff.nasa.gov/multimedia/docs/wffruh.pdf</a>