@article{731044, recid = {731044}, title = {Pathways to exploration rationales and approaches for a U.S. program of human space exploration / [electronic resource] :}, pages = {1 online resource (278 pages) :}, note = {"Committee on Human Spaceflight Aeronautics and Space Engineering Board Space Studies Board Division on Engineering and Physical Sciences : Committee on National Statistics Division of Behavioral and Social Sciences and Education"--Cover.}, url = {http://library.usi.edu/record/731044}, }