TY  - BOOK
AU  - Schmude, Richard
TI  - Comets and how to observe them
T2  - Astronomer's observing guides
SN  - 978-1-4419-5789-4
PY  - 2010///
CY  - New York
PB  - Springer
KW  - Comets
KW  - Observing comets
ER  -