TY  - BOOK
AU  - David A. J. Seargent
TI  - Visually Observing Comets
SN  - 9783319454351
PY  - 2017///
PB  - Springer International Publishing
KW  - Physics and Astronomy
UR  - https://doi.org/10.1007/978-3-319-45435-1
ER  -