TY  - BOOK
AU  - Struve, Otto
TI  - Astronomy of the 20th century
PY  - 1962///
CY  - New York
PB  - Macmillan
KW  - Astronomy
KW  - Astronomy and Astrophysics Thesaurus
KW  - Astrophysics
N1  - Contains illustrations
ER  -