TY  - BOOK
AU  - Clotfelter, Berly E
TI  - The universe and its structure
SN  - 0-07-011385-8
PY  - 1976///
CY  - New York
PB  - McGraw-Hill
KW  - Astronomy
KW  - Astronomy and Astrophysics Thesaurus
KW  - Universe
ER  -