TY  - BOOK
AU  - Roth, Gunter D., ed.
TI  - Handbook of practical astronomy
SN  - 978-3-540-76377-2
PY  - 2009///
CY  - Berlin
PB  - Springer
KW  - Optics and telescopes-Handbook
KW  - Practical astronomy-Handbook, manual etc
KW  - Sperical astronomy-Handbook
ER  -