TY - BOOK AU - Naugle, John E. AU - ED - ED - ED - ED - SN - 2 PY - 1965///46 CY - New York PB - Holt, Rinehart and Winston KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Astronautics in astronomy.;Astronautics in geophysics N1 - Bibliography: p. 169-170; 5 ER -