Inhaltsangabe
Observations of variable stars. This book, "Observations of variable stars", by Willem Jacob Luyten, is a replication of a book originally published before 1921. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible.
Die Inhaltsangabe kann sich auf eine andere Ausgabe dieses Titels beziehen.
