Voyage to the Planets, 5th Goddard Memorial Symposium, Mar. 14-15, 1967, Washington, D. C (Science & Technology Ser)S. Fred Singer · First published 1968AdventureOpen the Tome
Physics of the Moon (Aas/Aaas Symposium), Dec. 29, 1966, Washington, D.C (Science & Technology Ser)S. Fred Singer · First published 1967Open the Tome
Design and test of a suction gas producer pressure regulatorS. C. Singer · First published 1907Open the Tome
