@article{179373, recid = {179373}, title = {Space flight : the first 30 years.}, publisher = {National Aeronautics and Space Administration, Office of Space Flight,}, address = {Washington, DC (400 Maryland Ave., S.W., Washington 20546) :}, pages = {iii, 36 p. :}, year = {1991}, note = {Item 830-I.}, url = {http://library.usi.edu/record/179373}, }