The global exploration roadmap
By: International Space Exploration Coordination Group (ISECG)
Contributors: United States. National Aeronautics and Space Administration
Publisher: National Aeronautics and Space Administration
Published: 2011
Place of publication: Washington, DC
Language: eng
Format: [electronic resource] /
Number of pages: 36
Subjects: Manned space flight; International cooperation; Space probes; Exploration
Notes: Title from title screen (viewed on Apr. 24, 2012).

"September 2011."

"NP-2011-09-766-HQ"--P. [38].