%0 Book %T Space Research: Directions for the Future %D 1966 %U https://nap.nationalacademies.org/catalog/12410/space-research-directions-for-the-future %> https://nap.nationalacademies.org/catalog/12410/space-research-directions-for-the-future %I The National Academies Press %C Washington, DC %G English %K Space and Aeronautics %P 651 %R doi:10.17226/12410