Martin Griffiths
Observer's Guide to Variable Stars - 1st ed. 2018 - Springer International Publishing 2018 - The Patrick Moore Practical Astronomy Series .
9783030009045
Physics and Astronomy
Observer's Guide to Variable Stars - 1st ed. 2018 - Springer International Publishing 2018 - The Patrick Moore Practical Astronomy Series .
9783030009045
Physics and Astronomy