TY  - BOOK
AU  - Young,Louise B.
ED  - American Foundation for Continuing Education.
TI  - Exploring the universe
AV  - QB 981 A512e 1963
U1  - 508.2 
PY  - 1963///]
CY  - New York
PB  - McGraw-Hill
KW  - Cosmology
KW  - Science
KW  - Astronomy
KW  - Sciences
KW  - Collections
KW  - Astronomie
KW  - Astronomía
N1  - Includes bibliography
ER  -